Why Does My C Code Produce 'Error LNK2019: Unresolved External Symbol _WinMain@16'?

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:

1. Open your Visual Studio project's Properties window.
2. Navigate to Linker > System.
3. 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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