Error Fixed - only 1 fatal remaining

The only remaining errors are as follows:

1>------ Build started: Project: cse20212, Configuration: Debug Win32
------
1>Debug\Pokemon.obj : warning LNK4042: object specified more than once;
extras ignored
1>SDLmain.lib(SDL_win32_main.obj) : error LNK2005: _main already defined
in Source.obj
1>SDLmain.lib(SDL_win32_main.obj) : error LNK2019: unresolved external
symbol _SDL_main referenced in function _main
1>C:\Users\Alex
Hansen\Documents\GitHub\Cse20212\cse20212\Debug\cse20212.exe : fatal
error LNK1120: 1 unresolved externals
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped
==========

Thats on the SDL side, and I dont even know where these files are.