from:
https://sourceforge.net/p/orwelldevcpp/forums/troubleshooting/thread/311f0dd8/

When I start to debug (I use a "32-bit debug" or "64-bit debug" configuration) a source file located in a driver root directory, eg, D:\hello.cpp, GDB will throw out error:

->->error-begin
D:run: No such file or directory.

If I move the file into some other directory, eg. D:\myprog\hello.cpp, GDB works fine.