The error message “Pak is Invalid” occurs when Fortnite fails to load one or more of its game-data archive files (.pak files), causing crashes, failed launches ...

The file corresponding to the python path has been selected, but when running, it still shows that the environment is not set or is invalid ...

The current IDLE colorizer was designed when the python grammar was restricted to a context-free subtype. Parsing with RE's was sufficient or closely so to pick out substrings to be color tagged. The ...