When downloading and installing files, the system was unable to create a folder due to a colon in the file path. Finally, the installation failed. I don't know if I have encountered a similar problem.
mkdir D:\OnlineGame\itch\app\mutant-alley-do-the-dinosaur\Mutant Alley 1.1(Windows)\Mutant Alley:Do the Dinosaur_Data:The directory name is invalid.