How to Resolve the 'RuntimeLibrary' Mismatch Error in Visual C ?

Mismatch Detected for 'RuntimeLibrary'

This error arises when using Visual C , where different parts of the program (e.g., libraries and source files) rely on different versions of the C RunTime library (CRT).

Solution:

Ensure that the Runtime Library setting is consistent throughout all linked files and libraries:

1. Open Project Properties.
2. Go to C/C , then Code Generation.
3. Under Runtime Library, select the same option for the target program and any linked libraries (e.g., Multithreaded Debug or Multithreaded Debug DLL).

Explanation:

Each CRT option represents a specific runtime library that defines various aspects of the program's behavior, including object sizes and layouts. Mixing different CRT versions can lead to inconsistencies in data handling, which causes compile-time errors like LNK2038.

Specifically, the error message "MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug'" indicates that a library built with static Multithreaded Debug CRT is linked with a program using dynamic Multithreaded Debug CRT.

To resolve the issue, align the Runtime Library settings for the program and its dependencies, ensuring that all components use the same version of the CRT.

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