I am having problems with jGRASP. Whenever i try to compile... i get the error...

"g++.exe: installation problem, cannot exec `cc1plus': No such file or directory

----jGRASP wedge2: exit code for process is 1.
----jGRASP: operation complete."

Does anybody have a quick fix?

I already have MinGW installed.

Are you running Dev-C++ on MS-Windows? If yes, I had that error too and fixed it by changing the default include directory paths to full paths. I found that suggestion on the net somewhere and it worked for me. If that's your compiler then I'll give you more explicit/detailed information about what needs to be changed.