I had the same problem; the fix wasn't a "-", a " ", or the language. My install path is "D:\Programming\energia". There's only one language installed and active in the language list, which is "English(United States)". The full message was:
Cannot run program "D:\PROGRA~1\ENERGIA\HARDWARE\TOOLS\MSP430\BIN\msp430-g++": CreateProcess error=2, The system cannot find the file specified
I moved the Energia folder to the root level of D: (i.e. I removed the "PROGRA~1" from the path) and it worked. This is a work around. I would like to be able to organize my drive more to my liking, sp
