Urgent! Fellow gamers, come in quickly~
The original poster used X Manager to unzip an installation package (jar), modified the files, then compressed it and the installation failed... At first, the OP thought that it couldn't be installed because of the modifications, so they unzipped the original file again and then compressed it without doing anything, but it still couldn't be installed... Seeking the correct solution! Note: zip has been changed to jar, don't tell me it hasn't been changed.
