Ошибка 1104 visual studio

The error message «LINK : fatal error LNK1104: cannot open file ‘MSVCRTD.lib'» is a common issue faced by C++ developers when building their projects in Visual Studio. This error occurs when the linker is unable to find the required runtime library file ‘MSVCRTD.lib’, which is the standard C++ library implementation in Visual Studio. Without this library, the linker will not be able to build the project and generate the final executable.

Method 1: Check Project Configuration Settings

To fix the LINK : fatal error LNK1104: cannot open file 'MSVCRTD.lib' error in C++, you can use the «Check Project Configuration Settings» method. Follow these steps:

1. Open your project in Visual Studio.
2. In the Solution Explorer, right-click on your project and select «Properties».
3. In the left-hand pane, select «Configuration Properties» > «Linker» > «Input».
4. In the «Additional Dependencies» field, make sure that MSVCRTD.lib is listed. If it is not, add it by clicking the dropdown arrow and selecting «Edit».
5. In the «Additional Library Directories» field, make sure that the directory containing MSVCRTD.lib is listed. If it is not, add it by clicking the dropdown arrow and selecting «Edit».
6. Click «OK» to save the changes to your project properties.

Here is an example code snippet showing how to add MSVCRTD.lib to your project configuration:

#pragma comment(lib, "MSVCRTD.lib")

This line should be added to your source code file, typically at the top of the file.

Here is an example code snippet showing how to add the directory containing MSVCRTD.lib to your project configuration:

#include <iostream>
#include <Windows.h>

int main() {
    // Add directory containing MSVCRTD.lib to linker search path
    SetDllDirectory("C:\\path\\to\\MSVCRTD.lib\\directory");

    // Rest of your code here
    std::cout << "Hello, world!" << std::endl;

    return 0;
}

This code snippet uses the SetDllDirectory function to add the directory containing MSVCRTD.lib to the linker search path. This function should be called before any other code that uses MSVCRTD.lib.

By following these steps and adding the necessary code to your project, you should be able to fix the LINK : fatal error LNK1104: cannot open file 'MSVCRTD.lib' error in C++.

Method 2: Reinstall Visual Studio

If you are facing the error «LINK : fatal error LNK1104: cannot open file ‘MSVCRTD.lib'» while building your C++ project, you can try reinstalling Visual Studio to fix the issue. Here are the steps to do so:

1. Uninstall Visual Studio: Go to Control Panel -> Programs and Features -> Uninstall a program. Find Microsoft Visual Studio in the list, right-click on it and select Uninstall. Follow the prompts to complete the uninstallation.

2. Download Visual Studio: Go to the Visual Studio website and download the latest version of Visual Studio. Make sure to download the version that matches your operating system.

3. Install Visual Studio: Run the downloaded Visual Studio installer and follow the prompts to install Visual Studio. Make sure to select the C++ development workload during the installation process.

4. Open your project: Open your C++ project in Visual Studio.

5. Rebuild your project: Go to Build -> Rebuild Solution to rebuild your project. This should resolve the «LINK : fatal error LNK1104: cannot open file ‘MSVCRTD.lib'» error.

Here is an example of how to rebuild a C++ project in Visual Studio:

#include <iostream>

int main()
{
    std::cout << "Hello, World!";
    return 0;
}

Save the above code as a .cpp file and create a new Visual Studio project with this file. Then follow the above steps to reinstall Visual Studio and rebuild the project.

I hope this helps you resolve the «LINK : fatal error LNK1104: cannot open file ‘MSVCRTD.lib'» error.

Method 3: Check Windows System Environment Variables

To fix the LINK : fatal error LNK1104: cannot open file 'MSVCRTD.lib' error in C++, you can check the Windows System Environment Variables. Here are the steps:

1. Open the Start menu and search for «Environment Variables».
2. Click on «Edit the system environment variables».
3. Click on the «Environment Variables» button.
4. Under «System Variables», scroll down and find the «Path» variable. Click on «Edit».
5. Click on «New» and add the path to the folder containing the MSVCRTD.lib file. For example, C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.28.29333\lib\x64.
6. Click «OK» on all the windows to save the changes.

Here is an example of how to add the path to the MSVCRTD.lib file using C++ code:

#include <Windows.h>

int main() {
    // Get the current system environment variables
    LPWSTR env = GetEnvironmentStringsW();

    // Find the "Path" variable
    LPWSTR pathVar = wcsstr(env, L"Path=");

    // Add the path to the folder containing the MSVCRTD.lib file
    wchar_t newPath[] = L";C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Community\\VC\\Tools\\MSVC\\14.28.29333\\lib\\x64";
    wcscat_s(pathVar, wcslen(pathVar) + wcslen(newPath) + 1, newPath);

    // Set the updated environment variables
    SetEnvironmentStringsW(env);

    return 0;
}

This code gets the current system environment variables, finds the «Path» variable, adds the path to the folder containing the MSVCRTD.lib file, and sets the updated environment variables. This should fix the LINK : fatal error LNK1104: cannot open file 'MSVCRTD.lib' error.

Method 4: Manually Add the Library to the Linker Input

To manually add the library to the linker input, you can follow these steps:

1. Open your project in Visual Studio.
2. Right-click on your project in the Solution Explorer and select Properties.
3. In the left-hand pane, select Configuration Properties > Linker > Input.
4. In the Additional Dependencies field, add «MSVCRTD.lib» (without quotes).
5. Click OK to save the changes.

Here is an example of what the Additional Dependencies field should look like after adding «MSVCRTD.lib»:

kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;MSVCRTD.lib

This should resolve the «LINK : fatal error LNK1104: cannot open file ‘MSVCRTD.lib'» error you are encountering.