Eu4 exe системная ошибка

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• #1

When starting EU4, it crashes from the launcher without errors. I tried to reinstall both the launcher and the game and everything that is possible, but nothing works.

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• #2

Now it shows the error » The order of loading modifications could not be saved. Make sure that the launcher has access to your Documents folder». But later the error disappeared and the game continues to crash

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• #3

What launcher version do you see? Current is 2021.6

If that is okay, wat antivirus app do you use? You need to make sure all these apps are in its exceptions lists:

eu4.exe and dowser.exe (in the Steam EU4 folder)
C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/launcher-v2.2021.6/paradox launcher.exe
C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/bootstrapper-v2.exe

Good luck!

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• #4

I see two versions of the launcher 2020.11 and 2021.6

I use Malwarebytes as an antivirus program, but I use it only to check the computer, the protection is disabled on a regular basis. The firewall is disabled.

P.S (I forgot to clarify something important) A little more than a month ago, I reset the computer to factory settings and during this time I only played Hearts Of Iron 4 one time (And it doesn’t work either. When running, it gives the error Paradox Crash reporter. And at the moment this error is also present). And I have an assumption that either this is due to the Paradox launcher or I am missing some software on my computer.

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• #5

I’m afraid I cannot read Russian so I don’t know what you are showing me there! Being an image I can’t run it through Google translate either.

What if you set all those .exe files (except eu4.exe) to run as the Windows Admin user?

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• #6

These images were not particularly important, so we will not dwell on this.

I put in the properties of the language to these .the exe files were run as an administrator. I tried to log in to the game, but I got this error:

I clicked «Yes» and I got another error:

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• #7

Okay, let’s do a clean reinstall of the launcher:

— exit the Steam app entirely
— uninstall Paradox Launcher v2 from the Windows «Apps and features» utility, if still present.

Delete the following folders if still present:

— C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/
— C:/users/<UserName>/AppData/Local/Paradox Interactive/
— C:/users/<UserName>/AppData/Roaming/Paradox Interactive/launcher-v2/
To see the AppData folder you’ll need to enable View Hidden Items in File Explorer.

— run steam.exe as the Windows Admin user

— run the game from the PLAY button in Steam

IF that doesn’t help, in this folder are some .log files:
C:/users/<UserName>/AppData/Local/Paradox Interactive/launcher-v2/
Please attach them here.

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• #8

It didn’t work. Logs attached. (There was another one. log called «launcher-2021-07-24» but I couldn’t attach it because it’s empty.)

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• launcher-bootstrapper.log

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• launcher-dowser.log

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• #9

Let’s try forcing an update of the launcher.

Download the installer package: https://forumcontent.paradoxplaza.com/emailsignatures/2021.6-win-prod.zip

Unpack the file you just downloaded and place the three files in the Steam folder for the game you’re having issues with. If asked if you want to replace already existing files click «yes» — that’s a sign you are in the right place!

Then please repeat the launcher reinstall procedure from before.

Good luck with that!

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• #10

It didn’t work =(
Now it shows the error «Failed to start the game».
I completely deleted the game, deleted everything related to the paradox, installed the game and added the files that you told me to replace (I had a file replacement). But nothing worked.

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• #11

But the launcher itself works now, is that right? It shows version 2021.6 and no error other than failing to launch the game?

What happens if you run eu4.exe directly from File Explorer now?

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• #12

The launcher worked well and there were no errors other than «failed to start the game». When I launch from the folder, the game just crashes on startup as well.
In general, I decided to try to download the pirated version to see if it will work. I downloaded it and also does not start (it crashed at startup). In desperation, I tried to install various components, such as DirectX and all that. I installed the Radeon drivers on my video card (a video card from Radeon) and restarted the computer. And the pirated version has started! And I was able to play it. I tried to run the license, but it gave an error that I had previously voiced (I was asked to reinstall the launcher, and then it gave an error). I completely removed the launcher, as you said, and the launcher started, only now both the pirated and licensed versions have stopped working. After a while, this error popped up again (about reinstalling the launcher) and the pirated version started working again. But the license still did not start (via eu4.exe)

P.S (1) Hoi4 gives out paradox crash reporter also when the game starts, Eu4 just crashes when it starts, but Cities: Skylines works fine

Last edited: Jul 27, 2021

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• #13

English only in these forums please!

So both EU4 and HOI4 fail to start from the launcher now, is that right?

Do they both run okay from their respective .exe files still?

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• #14

Launching directly from a folder does not work
It seems that after adjusting on the smartphone, google translator automatically translated half of the text into Russian for me… I’m sorry, now I’ll be more attentive in the future

(I rewrote the text that was in Russian in the last comment)

So, after your message, I really wanted to play eu4, and I thought that while I’m waiting, I can download a pirated eu4 to play and check if it will work. But after the installation, I was disappointed — it did not work (it also crashed like the licensed one). After about an hour of proceedings, when launching the paradox launcher, I got an error that I had already received earlier

And I decided not to deal with this error yet, but to try to launch a pirate and it worked. But the license did not work (running directly from the folder). I restored the launcher and the pirate stopped working again. I completely deleted the launcher, but the pirate did not work either. Only then I got this error again, and the pirate started working again.

I have no idea how this is related, but I noticed that the pirated eu4 contacted the licensed paradox launcher (at startup dowser.exe gives the launcher error that I wrote about above). I generally have no idea what’s going on, I think you understand better

Last edited: Jul 28, 2021

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• #15

You need to stop using and even talking about pirated software, which is forbidden on these forums.

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• #16

Then I have nothing more to say. I thought that this would somehow help clarify the situation. I’m sorry =( . Now I just hope that you will continue to help me. So let’s continue only on the case.

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• #17

So both EU4 and HOI4 fail to start from the launcher now, is that right?

Do they both run okay from their respective .exe files still?

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• #18

No, they don’t work normally with their own .exe files. There is no difference when launching from the launcher or from a folder, it still does not work

I switched Eu4 to version 1.28, where the old version of the launcher is installed and it works fine! It really seems that the problem is only in the new version of the launcher.

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• #19

But if you run eu4.exe and hoi4.exe directly from File Explorer the launcher is not involved, so cannot be what is causing this problem for you.

Does a Windows error appear when you do that, or what exactly happens?

Please go here:

And run the x86 and x64 installers there.

Then run this Windows repair tool:

If they don’t help
DXDIAG is a program you run from the Windows search box on the task bar. After running it will open a window and start collecting info with a progress bar in the lower-left corner. When it completes click the ‘save all information’ button and save it to a file then attach that file here.

Please attach here your Documents/Paradox Interactive/EU4/settings.txt and pdx_settings.txt .
From your Documents/Paradox Interactive/EU4/logs/ folder, attach here system.log , error.log .

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• #20

Error.log couldn’t insert it because it’s empty

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If Europa Universalis 4 or EU4 is not launching for you in Windows 10, there are some fixes that can help you. These EU4 fixes can mend your broken executable and the overall system also.

Try them out one by one and do mention any additional tips that has already worked for you. We will add that to the mix.

---

Game Not Launching and Crashing At Startup Fixes

Some EU 4 players are reporting that the game won’t launch or it crashes at launch. These are a few fixes and workarounds that will hopefully make the game run smoother for you.

• If you have Onedrive, disable it and see if that solves the issue.

The first thing that players need to do is disabling fullscreen optimizations. You can manage your steam library by clicking on Manage > browse Local Files > right-clicking Eu4.exe > Properties > Compatibility tab.

If the change is applied, the game will not crash at launch. The crash at the launch of the game can be solved by running the game in borderless fullscreen instead of Fullscreen.

There is a chance that the game will crash at launch if the game does not have admin rights. If you want to run the program as an administrator, go to the game’s install folder and click the Properties tab. The problem will be fixed if the change is applied and the game is launched.

If the above fixes failed to resolve the issue, then your anti-viruses/windows defenders might be blocking the game. You can either exclude the game’s install folder from it or disabling it. The not launching issue of Europa Universalis 4 will be fixed after verification of game files.

---

Crash Fix

This version of Europa Universalis 4 is very unstable. The developers have to restart the game every time someone quits (even to the main menu) so they can test a new build of the game. This is not a bug; it’s a feature! They’re finding and fixing major bugs as fast as they can. This game has a team of active devs, we are assuming!

---

Could Not Start Paradox Launcher, JavaScript Error Fix

Some EU4 Emperor players are reporting that they the following errors when they launch the game.

Could Not Start the Paradox Launcher at C:\users\(username)\Appdata\Local\Paradox Interactive
CreatFile C:\users\(username)\Appdata\Local\Paradox Interactive\bootstrapper-v2.exe: The system could not find the file specified

or

A JavaScript error occurred in the main process”
Uncaught Exception:
Error: Cannot open C:/Users/user/AppData/Local/Programs/ParadoxInteractive/launcher-v2.2019.10.4/resources/app.asar/dist/main/microworks.node: Error: Access is denied.

or

{“messageId”:”game.steamInitializationFailed”}

These particular EU4 errors are caused by the game’s broken launcher. This can be fixed by deleting the launcher. First, use the Control Panel to delete the “Paradox Launcher v2” if it’s there. Then navigate to the path mentioned below and delete the launcher directories.

C:/users//AppData/Local/Programs/Paradox Interactive/
C:/users//AppData/Local/Paradox Interactive/
C:/users//AppData/Roaming/Paradox Interactive/launcher-v2/
Documents/paradox interactive/.cpatch/

• Delete every directory in Documents/paradox interactive/ that starts with launcher-v2
• Once you’ve done this, launch the game from Steam and it’ll automatically download and install the Launcher.
• Give the game’s exe admin rights, see under “Crash At Startup Fix” to see how to do it.
• For Linux users, delete the directories ~/.paradoxlauncher and “~/.local/share/Paradox Interactive/launcher-v2/” and the file “~/.local/share/Paradox Interactive/launcherpath”.
• As for Mac users, delete the directory “~/Library/Application Support/Paradox Interactive”
• This will fix these errors and you’ll be able to play the game.

---

If the above fixes did not work for you, you can contact the developers at their official pages to reach out. Thanks for dropping by and reading this guide on How to Fix UE4 Not launching for Windows 10.

You can follow us on Twitter and drop a like on Facebook to get the latest update on guides for Mobile Games, PC Games, and Codes List for different games. Got specific suggestions? You can submit them here. Thanks for reading!

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No Good

03.10.2013, 03:19:32

Europa Universalis IV (RU)

Войдите или зарегистрируйтесь, чтобы увидеть скрытое содержимое. | Войдите или зарегистрируйтесь, чтобы увидеть скрытое содержимое. | Задать технический вопрос | Войдите или зарегистрируйтесь, чтобы увидеть скрытое содержимое. | c1221c94dff9830ecde0c2dfde60b

JLRomik

16.02.2018, 12:35:25

Процессор. В игре много ежемесячных расчетов. Именно поэтому если тормоза наблюдаются, то самые сильные обычно в момент смены месяца и автосейва

Mxatma

08.01.2019, 16:00:07

Да че толку-то?! Дальше ведь ошибка всё равно как на втором скрине

Без Дяди Васи дальше не разберусь. Асму с отладчиком и перехватчиками не осилю.

А кряк хз какой, у меня их куча целая, како

Dipsas

09.02.2019, 17:00:19

нашёл лекарства от рака 😂

Войдите или зарегистрируйтесь, чтобы увидеть скрытое содержимое.

в разделе 2b  надо скачать файл bcrypt.dll и положить в папку игры

скачать архив » [Войдите или зарегистрируйтесь, чтобы увидеть скрытое содержимое.

romeoshaman

18.06.2019, 22:11:52

Да вы с самого первого сообщения все правильно мне говорили: действительно самый нормальный чики-пушный вариант это 2400G с докупом дискретной если сильно прпрёт. Или 3400G.

Я просто сто лет не с

AlexTheTeacher

19.08.2019, 11:08:50

по сравнению со Стелларисом Европа вообще не требовательная )))

JLRomik

26.03.2020, 10:48:04

Откатить на ту версию, на которой можно было играть на 32.

ЗЫ. Ну и расстрелять Йохана само собой.

Вася;s;frf

18.06.2020, 08:24:31

При запуске через экзешник все нормально. У кого была такая же проблема и как вы ее решили?

Перезагрузите компьютер

Запуск от имени администратора

Проверить целостность файла

Что такое неизвестная ошибка Europa Universalis IV?

/p>

Эта ошибка обычно возникает из-за того, что игра запущена не от имени администратора.

Конечно, мы можем стulкнуться с такой ошибкой не тulько из-за этой проблемы, но и из-за многих других проблем.

Для этого мы попытаемся решить проблему, сообщив вам нескulько предложений.

Как исправить неизвестную ошибку Europa Universalis IV

Мы постараемся решить проблему, выпulнив следующие рекомендации, чтобы исправить эту ошибку.

1-) Перезагрузите компьютер

Перезагрузка компьютера может помочь нам исправить потенциальные ошибки.

Поэтому помогите очистить все файлы фонового кеша, перезагрузив компьютер.

После перезагрузки компьютера запустите игру и проверьте, сохраняется ли проблема.

2-) Запуск от имени администратора

Не запуская игру от имени администратора, мы можем стulкнуться с различными ошибками, подобными этой.

Пulьзователи Reddit заявляют, что проблема устранена, когда они запускают игру от имени администратора.

Мы можем устранить проблему, реализовав это предложение.

• Сначала откройте каталог, в котором установлена ​​программа Europa Universalis IV.
• Щелкните правой кнопкой мыши программу «eu4.exe» в папке и откройте меню «Свойства«.
• Выберите параметр «Совместимость» в открывшемся новом окне и включите параметр «Выпulнять эту программу от имени администратора».
• Затем нажмите кнопку «Применить» и сохраните действие.

После выпulнения этой операции сделайте то же самое в Steam или Epic Games.

После применения процесса давайте пulностью закроем открытое в фоновом режиме приложение Steam или Epic Games с помощью диспетчера задач.

Затем запустите приложение Epic Games или Steam, откройте игру и проверьте, сохраняется ли проблема.

3-) Проверка целостности файла

Мы проверим целостность файла игры, отсканируем и загрузим все отсутствующие или неправильные файлы. Для этого;

 Для игроков Steam;

• Откройте программу Steam.
• Откройте меню библиотеки.
• Нажмите правой кнопкой мыши на игру  Sea Of Thieves слева и откройте вкладку Свойства 

.

• Откройте меню Локальные файлы в левой части открывшегося экрана.
• Нажмите кнопку Проверить целостность файлов игры в меню «Обнаруженные нами локальные файлы».

Для игроков Epic Games

• Запустите программу запуска Epic Games.
• Откройте меню библиотеки.
• Нажмите на три точки над игрой Sea Of Thieves и нажмите кнопку «Управление«.
• Нажмите кнопку «Подтвердить» на открывшемся экране.

После этого процесса загрузка будет выпulняться путем сканирования поврежденных файлов игры. После завершения процесса запустите игру и проверьте, сохраняется ли проблема.

Да, друзья, мы решили нашу проблему под этим загulовком. Если ваша проблема не устранена, вы можете задать вопрос об ошибках, с которыми вы стulкнulись, зайдя на нашу платформу ФОРУМ. открыт.

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• #2

Please try this:

— exit the Steam app completely
— uninstall Paradox Launcher v2 from the Windows «Apps and features» utility, if still present.

Delete the following folders if still present:
— C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/
— C:/users/<UserName>/AppData/Local/Paradox Interactive/
— C:/users/<UserName>/AppData/Roaming/Paradox Interactive/launcher-v2/

— run steam.exe as the Windows Admin user
— run EU4 from the Steam PLAY button

I hope that works for you!

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• #3

I’ve done everything you’ve told me but once I launch it steam says it’s open but it isn’t in task manager so I close steam and open eu4 again and it does the same thing as before and tells me «Launching the game failed»

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• #4

If you run EU4.exe by itself does that also fail?

If so, Has the game ever run OK on this computer? Or never?

IF NEVER:
Install ALL these Microsoft modules:

https://www.microsoft.com/en-au/download/details.aspx?id=8328
https://www.microsoft.com/en-au/download/details.aspx?id=13523
https://www.microsoft.com/en-us/download/details.aspx?id=52685
https://www.microsoft.com/en-us/download/details.aspx?id=8109
(run dxsetup.exe after extracting from this download)

Add EU4.exe to the exceptions list of your antivirus app; ESPECIALLY if you have Windows Defender, add it to the Ransomware «Apps Allowed Through» list.

Also if you have installed RivaTuner, RadeonPro, or a gaming VPN app called Evolve, or the MSI Gaming App, or Duet, disable it as it clashes with this game.

IF IT USED TO WORK:
Please do a full **clean** re-install:

— move any valued save games elsewhere
— «uninstall» in Steam-EU4
— manually delete both the Steam/SteamApps/common/EU4 AND Documents/Paradox/EU4 folders
— re-install game in Steam, run a Steam Verify when done.
— add EU4.exe to the exceptions list of your antivirus app; ESPECIALLY if you have Windows Defender, add it to the Ransomware «Apps Allowed Through» list.
— start the game with no mods active and test

In particular make sure there are no files or folders left under either the Steam EU4 or Documents EU4 locations, before installing again.

Also if you have installed RivaTuner, RadeonPro, or a gaming VPN app called Evolve, or the MSI Gaming App, or Duet, disable it as it clashes with this game.

IF NEITHER OF THOSE HELP:
DXDIAG is a program you run from a command prompt or the Windows start menu ‘run’ dialog box (or ‘search programs’ in Windows 7 or later). After running it will open a window and start collecting info with a progress bar in the lower-left corner. When it completes click the ‘save all information’ button and save it to a file then attach that file here.

Please attach your Documents/Paradox/EU4/settings.txt and pdx_settings.txt .
From your Documents/Paradox/EU4/logs/ folder, attach system.log .

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• #5

Since I just got this game I did the instructions at the top and it worked thanks!

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• #6

Hello,

I’ve run into the same problem after te latest update version 1.29.4.0. tried all of your suggestions and nothing seems to work. deleted the maps so don’t have all the files anymore did make the dxdiag for you. could you help me with this?

• DxDiag 02-02-2020.txt

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• #8

Edited as fixed* After running steam in admin, uninstalling the launcher through the eu4 folder in steamapps the game seemed to run perfectly. Hopefully this helps someone else.

Hello, I seem to be having the same problem. I’ve tried doing all the things you’ve indicated could fix the issue but to no avail. I’m still having the same problem.

There was no issue with this a couple months ago, but since then I have reinstalled windows 10 onto a new SSD.

Another issue that has started occuring after fiddling around with all this is that I cannot install the launcher anymore as the system cannot find AppdataLocalParadoxInteractivelauncherpath.

I use windows defender as my virus protection and eu4.exe is allowed through.

• DxDiag.txt

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Last edited: Feb 5, 2020

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• #9

hey i get the same error from first post, «Launching the game failed». I just do all things who u tell the guy and not worked for me! Sorry for my english im brazilian.

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• #10

hey i get the same error from first post, «Launching the game failed». I just do all things who u tell the guy and not worked for me! Sorry for my english im brazilian.

You did everything in my post#4 above?

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• #11

You did everything in my post#4 above?

Yes and not worked, uninstalled all things who u did and installed microsoft modules.

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• #13

If i run only eu4.exe without paradox launcher i get error 0xc00000007b

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• #14

Log files

• pdx_settings.txt

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• system.log

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• #15

If i run only eu4.exe without paradox launcher i get error 0xc00000007b

Does it mention a DLL as well, or just that error number?

When you ran those 4 Microsoft installers, where they any errors or problems?

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• #16

So ive just installed eu4 on epic and after clicking the launch button this happened and i let it load for like an two hours but its still loading. Can i get help pls.
BTW epic says ive playd the game but i havent even opened a launcher.

I also just got this Europe Universalis from the Epic store, and it opens the Launcher but when I press Play the launcher disappears and nothing happens. The game never loads. The mouse buttons won’t work so no left or right clicking with the mouse is possible until I restart the computer. The keyboard seems to work, so I am able to CTRL + ALT + DEL and see that the Europa Universalis is unresponsive in the Task Manager.

I’ve contacted Technical Support at Epic and they said that I should contact the developer of EU. So here I am, can anyone help us that got this game from the Epic store to get it working? It is free until Thursday next week, but what is the point if it won’t work…?

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• #17

I also just got this Europe Universalis from the Epic store, and it opens the Launcher but when I press Play the launcher disappears and nothing happens. The game never loads. The mouse buttons won’t work so no left or right clicking with the mouse is possible until I restart the computer. The keyboard seems to work, so I am able to CTRL + ALT + DEL and see that the Europa Universalist is unresponsive in the Task Manager.

I’ve contacted Technical Support at Epic and they said that I should contact the developer of EU. So here I am, can anyone help us that got this game from the Epic store working? It is free until Thursday next week, but what is the point if it won’t work…?

i am so sorry but my little brother deleted it so i am gonna post it again

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• #18

Please don’t reopen old threads, problems were different back then. Each affected person should make their own new one, thanks.

As there are many people who have problems to run eu4 after the Manchu update, I compiled a list of all known problems and how to solve them. Please tell me which problems I missed or if I made any mistakes.

Please leave a comment to tell me which specific problem you had and what helped you, so that I can improve this guide. And also tell me how the instructions can be improved or clarified.

Generic troubleshooting tips

These help with many different problems and you can try them if you have a problem which is not listed below or if the solution below doesn’t help.

Verify game files

The easiest thing that you can do is to verify the integrity of game files.

Clean reinstall

Can somebody tell me what the default folders in windows and macOS are and how to access them in a username agnostic way

1. find out where steam installed eu4 (go into the steam library, right click on eu4->properties->local files->browse local files). Remember that folder for 5.

2. unsubscribe from all mods in steam

3. uninstall eu4 from steam

4. exit steam

5. make sure that the folder where eu4 was installed (the one you remembered from 1.) doesn’t exist anymore. If it still exists, delete it with all its contents

6. delete the folder «steamapps\workshop\content\236850» with all its contents. Per default it is in «C:\Program Files\Steam» or «C:\Program Files (x86)\Steam» under windows(can somebody please verify that). Under Linux it is in ~/.steam/steam/ or ~/.local/share/Steam. In macOS it is in «~/Library/Application Support/Steam/» (can somebody please verify that)

7. move/rename the folder «Paradox Interactive\Europa Universalis IV». This folder is in your Documents folder in Windows and macOS and in ~/.local/share/ in Linux. You can also delete that folder, but it contains your save games, screenshot and locally created mods, which you may want to keep.

8. uninstall the launcher(you can skip this step if your game at least opens the Europa Universalis startup screen after you click play in the launcher). In windows use the windows uninstall function to uninstall «Paradox Launcher v2». Then delete the launcher directories:

   1. C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/

   2. C:/users/<UserName>/AppData/Local/Paradox Interactive/

   3. C:/users/<UserName>/AppData/Roaming/Paradox Interactive/launcher-v2/

   4. Documents/paradox interactive/.cpatch/

   5. Documents/paradox interactive/launcher-v2.2019.10.4/ (this one changes with each update of the launcher)

   6. In Linux the directories are ~/.paradoxlauncher and «~/.local/share/Paradox Interactive/launcher-v2/» and the file «~/.local/share/Paradox Interactive/launcherpath»

   7. In macOS it may be «~/Library/Application Support/Paradox Interactive»

9. start steam and download eu4 again

10. verify the integrity of game files

11. start eu4 from steam without subscribing to any mods

Downgrade to 1.28.3

If nothing else helps, you can go back to version 1.28.3

OS independent issues

GUI is too small

change from borderless fullscreen to fullscreen and reduce the resolution. Or increase the gui_scale in settings.txt

Impossible to set a non-standard resolution

change the resolution in pdx_settings.txt instead of settings.txt

Can’t change the refresh rate to above 60 Hz

try borderless fullscreen or windowed mode. That should use the refresh rate from your OS.

Game crashes on startup(after the launcher)

If this is not caused by one of the windows specific issues below, it can happen if you have broken save games in the save games directory. Try to move all save games somewhere else.

Mods do not work, do not appear, do not update or are duplicated in the launcher

1. unsubscribe from all mods in steam

2. exit eu4, the launcher and steam

3. delete the contents of the folder «steamapps\workshop\content\236850». Per default it is in «C:\Program Files\Steam» or «C:\Program Files (x86)\Steam» under windows. Under Linux it is in ~/.steam/steam/ or ~/.local/share/Steam

4. backup any locally created mods(or mods that you downloaded from outside of steam)

5. delete the folder «Paradox Interactive\Europa Universalis IV\mod». This folder is in your Documents folder in Windows and macOS and in ~/.local/share/ in Linux.

6. delete the file Documents\Paradox Interactive\Europa Universalis IV\mods_registry.json (~/.local/share/Paradox Interactive/Europa Universalis IV/mods_registry.json in Linux)

7. delete the folder Documents\Paradox Interactive\Europa Universalis IV\launcher-cache . It might be called .launcher-cache in some operating systems. (~/.local/share/Paradox Interactive/Europa Universalis IV/.launcher-cache in Linux)

8. start eu4 again and make sure that it works without mods and that you have the same checksum in the launcher and in the main menu(with 1.29.3 it is 1a2e) and then exit eu4

9. start steam again and resubscribe to your mods

10. wait for the mods to download completely

11. if you have local mods that you want to use, copy them back to «Paradox Interactive\Europa Universalis IV\mod» now

12. start the launcher again

If you use userdir.txt to place your game files in a different folder you may need to follow the instructions from this forum post to get mods to work.

corrupted DLCs

There has been one report that clearing the download cache and then verify the integrity of game files helps. And several reports that doing a clean reinstall helps(see above)

the game starts directly and skips the launcher

reinstalling steam has helped several people. If you don’t want to do that, you should be able to start dowser(.exe/.app) directly.

Windows specific issues

Launcher doesn’t start

Try to run dowser.exe from the game installation folder as an administrator. That allows the game to install missing dependencies. Once you started it successfully you can start it normally from steam. You can also try to run steam as an administrator.

If the launcher says «We had trouble communicating with Steam» or something similar, try to restart Steam or restart your computer. If that doesn’t help, see the next line.

Other launcher problems can be fixed by a clean reinstall(see above). Especially steps 8 and 7 are important for the launcher.

Missing Microsoft libraries (Microsoft Visual C++ 2010 SP1 Redistributable x86, Microsoft Visual C++ 2010 SP1 Redistributable x64, Microsoft Visual C++ 2015 Redistributable Update 3 RC) can also prevent the launcher from running.

And if you have an antivirus or a ransomware protection software, add the launcher to their exception list. If you have Windows Defender(also called Microsoft Defender), add it to the Ransomware «Apps Allowed Through» list(here are instructions for that). If you have bitdefender, add the launcher to the list of ransomware exceptions and «give it access» to «protected files».

can’t accept the EULA

if the launcher starts and asks you to accept the End-User License Agreement, but if you click on continue, nothing happens, that usually means that the file game_data.json can’t be written. This file is in «Documents\Paradox Interactive\Europa Universalis IV». Access to that file is often blocked by an antivirus or ransomware protection software. You have to add the launcher to its exception list. The next section(Crashes on startup) has a few details on how to do that for bitdefender and windows defender.

If you have no such software, make sure that the folder or the file game_data.json is not read-only.

Crashes on startup(after the launcher)

• if you have an antivirus or a ransomware protection software, add eu4 to their exception list

• if you have Windows Defender(also called Microsoft Defender), add it to the Ransomware «Apps Allowed Through» list.

• if you have bitdefender, add eu4 to the list of ransomware exceptions and «give it access» to «protected files»

• if you have any program that messes with your screen and/or overlays something in your game, try to disable them. Programms which are known to be problematic are:

  • RivaTuner Statistics Server

  • RadeonPro

  • a gaming VPN app called Evolve

  • MSI Gaming App / MSI Afterburner

  • Duet

• update your graphics driver

• install libraries from Microsoft: Microsoft Visual C++ 2010 SP1 Redistributable x86, Microsoft Visual C++ 2010 SP1 Redistributable x64, Microsoft Visual C++ 2015 Redistributable Update 3 RC and directx

• if you are on windows 7 or 8, try to manually install MS patch KB4019990

• if you are on windows 10, try to uninstall KB4515384(this might not be a good idea)

• if you configured eu4.exe to run as administrator, also set dowser.exe to run as administrator. Or deactivate the run as administrator for eu4.exe. (you can change that setting in properties>compatibility>change settings for all users>check «run this program as administrator)

• sometimes it helps to run the game in a different mode(windowed, borderless fullscreen or fullscreen). If the launcher doesn’t have the option to change that, you have to edit settings.txt. windowed is fullScreen=no and borderless=no, borderless fullscreen is fullScreen=no and borderless=yes, and normal fullscreen is fullScreen=yes and borderless=no

• disable «Fullscreen optimization»: right click the game exe >> compatibility >> disable fullscreen optimizations

• make sure that your harddisk is not full

• Microsoft OneDrive(if you have it) synchronizes the Documents folder per default which contains the save games and settings files. That may use up your quota and prevent changes to your settings files afterwards which would prevent the launcher from starting your game

• If you have a AMD Radeon graphics card, disable the anti-lag feature for eu4:

  • Right Click on desktop, select AMD Radeon Software

  • Select the Gaming tab and then Europa Universalis IV

  • Disable Radeon Anti-Lag

GUI is too small or mouse cursor to big

change the scaling option for eu4 by right clicking on eu4.exe, select Properties, select the Compatibility tab and then check «Override high DPI scaling behavior» and try the different values in the select box below

Linux specific issues

the game doesn’t start when using Wayland

There is at least one bug in Wayland which prevents the game from starting. As a workaround you can select a different session when you log in(on Fedora this would be called gnome-xorg). Your distribution should offer a way to change that permanently(Instructions for Fedora, can be found here).

Another workaround is to disable multisampling by editing «~/.local/share/Paradox Interactive/Europa Universalis IV/settings.txt» and changing the line which starts with «multi_sampling» to «multi_sampling=0»

launcher doesn’t start(opens a window for a short time and then closes before displaying any content)

This should be fixed with hotfix 1.29.2.

Set your launch options in steam to

LD_PRELOAD=/usr/lib/libc.so.6 %command%

You may have to specify the path where libc.so.6 is on your system. But it probably doesn’t matter. For me it also works if I use an empty LD_PRELOAD:

LD_PRELOAD= %command%

One person also reported that they had to remove «noexec» from the mount options for /tmp. You probably don’t have to worry about that if you didn’t change the mount options manually.

Or is noexec for /tmp the default on any Linux distributions?

macOS specific issues

launcher doesn’t start

• Make sure your game is already installed

• Press shift-command-G and enter «~/Library/Application Support/Paradox Interactive» («~/library» alone will suffice, but you’ll have to navigate manually within the folder)

• Erase everything you see in the Paradox Interactive folder

  • Alternatively you can use this command in the Terminal: rm -r ~/Library/Application\ Support/Paradox\ Interactive

• Launch Steam

• Click «Play» on the Steam Client’s game page.

Issues for which I don’t know a solution currently

the game always crashes on the same date

This should be fixed by the 1.29.2 hotfix

this seems to happen if you continue a save game from 1.28.3. Possibly this is caused by the Koxinga event. If you still have a backup of the save game from version 1.28.3, you can go back to that version. You can also try to prevent the Koxinga event by colonizing Taiwan or by somehow keeping Ming above 600 dev.

the game is very slow after the update

The devs don’t know what is causing this and asking for reports in the bug report forum. That way they can find out what the people who have this problem have in common

Edits: several edits, but I didn’t keep track of what I changed when

2019-10-05: add section «the game starts directly and skips the launcher» and added a note that the crash on the same date was fixed in 1.29.2

2019-10-16: improved the clean reinstall step 8(launcher)

2019-10-19: solution for launcher doesn’t start on macOS

2019-11-01: solution for EULA not clickable

2019-11-09: fix for mods not working if userdir.txt is in use. Update clean reinstall to explain when a launcher reinstall is not needed

2019-11-22: add more things to launcher doesn’t start; And remove suggestion to uninstall KB4515384, because I have not heard that it helped anybody since I made this post and it might cause further problems

2019-12-08/09/12/18: improved the mods do not work section

2019-12-20: add a section for Linux users who use Wayland

2019-12-25: «We had trouble communicating with Steam» can maybe be fixed by restarting steam

2019-12-28: add information about full harddisk/onedrive

2020-01-02: radeon anti-lag causes problems on windows

2020-01-04: update wayland information for linux

2020-01-21: improve mods do not work section slightly