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I'm having trouble with installing forge. I like to use a different directory for each version of minecraft than just the default .minecraft directory, but when I change the directory I get this error message. "The directory is missing a launcher profile. Please run the minecraft launcher first." I have ran vanilla minecraft through each of my different directories, so I don't know how to fix this error. The directory is missing a launcher profile.

i need help for multicraft my skype :