View Compilation Error

gcc-8.5.0/bin/../lib/gcc/x86_64-w64-mingw32/8.5.0/../../../../x86_64-w64-mingw32/bin/ld.exe: gcc-8.5.0/bin/../lib/gcc/x86_64-w64-mingw32/8.5.0/../../../../x86_64-w64-mingw32/lib/../lib\libmingw32.a(lib64_libmingw32_a-crt0_c.o):crt0_c.c:(.text.startup+0x2e): undefined reference to `WinMain'
collect2.exe: error: ld returned 1 exit status