LNK2019 unresolved external symbol _CrtDbgReport referenced in function _CRT_RTC_INIT SDL2

It seems to be an SDL issue. Here is a discussion on it in the SDL forum and basically there are following solutions - adding the libraries you mentioned , taking a proper VS2015 release build (there is a link in the thread) or building SDL from sources (the thread mentions that that should work too).

If you end up here because you Googled "error LNK2001: unresolved external symbol __CrtDbgReport" here is a simple thing to check...

If you are comparing working DEBUG to non-working RELEASE project settings and copy/paste between them, it is easy to copy a preprocessor definition, "_DEBUG" into a RELEASE project by mistake. I just chased my tail for two frustrating hours after a quick and sloppy cut-n-paste... see how long it takes to find it below:

WIN32_LEAN_AND_MEAN;WIN32;_CRT_NON_CONFORMING_SWPRINTFS;_CRT_SECURE_NO_WARNINGS;_CRT_SECURE_NO_DEPRECATE;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)