Why Am I Getting \"Unresolved External Symbol _main\" Error and How to Fix It?

Unresolved External Symbol _main: Targeting the Correct Entry Point

When encountering the error "error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup," it indicates that the linker cannot find a required entry point for the program. Despite having defined a main() function, the linker may become confused.

To rectify this issue in Visual Studio 2010, navigate to:

Project -> Properties -> Configuration Properties -> Linker -> System

Under the System settings, identify the SubSystem property and set it to "Console."

This adjustment clarifies for the linker that the program is a console application and establishes the proper entry point, resolving the unresolved external symbol error.

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