So i decided to make a private forge server to play with my sibling, but whenever I try to run forge, (I've tried recommended, latest, and others), instead of getting that nifty GUI. A text similar to command prompt pops up for like 1/2 of a second displaying: "Error: unable to locate main class files c:/users/[username]/downloads/forge[version]" Can you please help? Oh and by the way, I run windows 8.1, and This was for 1.7.2.