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Why Does My C++ Code Produce "Error LNK2019: Unresolved External Symbol _WinMain@16"?
Posted on 2025-02-07
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Resolving "Error LNK2019: Unresolved External Symbol _WinMain@16 Referenced in ___tmainCRTStartup"
While attempting to execute a basic code snippet, you may encounter the following error:
error LNK2019: unresolved external symbol _WinMain@16 referenced in function ___tmainCRTStartup
Cause:
This error occurs because the linker cannot resolve the undefined symbol _WinMain. This symbol typically refers to the main entry point function for a Windows application.
Solution:
To resolve this issue, follow these steps:
- Open your Visual Studio project's Properties window.
- Navigate to Linker > System.
- Under SubSystem, change the setting from Windows (/SUBSYSTEM:WINDOWS) to Console (/SUBSYSTEM:CONSOLE).
This modification will ensure that your code compiles as a console application instead of a Windows application, thus resolving the linker error.
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