The errors are pretty descriptive, plus the MSDN will always provide more information on any of their compiler and linker errors, did you take a look already?
The issue is that you seem to have built your main.cpp with an older compiler version that the SFML libraries were built with.
First try a complete and clean rebuild, then make sure your VS is uptodate and lastly check your project settings, whether you have picked an old version (17).