Eclipse -Error while launching command: gdb --version

I am using Eclipse on a Windows system (64-bit) for C++ code and the compiler is GCC/G++. I have created a .exe and in the end it is showing as amd64/le, and I am not able to debug. When I am trying to debug, I am getting the error as

Error while launching command: gdb --version CreateProcess error=2, The system cannot find the file specified

1. Can you please let me know what is that amd64/le?
2. What is need to be done to debug?