Unable to Identify Application Version

Unable to Identify Application Version

Game data may have been altered or corrupted; Battle.net can no longer determine if you need to patch your Classic Battle.net game.


  1. The game needs permission to read and modify the game files, launch the game in Administrator mode.


  1. If you are using Mac OS, make sure you are logged in on an Administrator account.
  2. Reset the permissions for the game folder:
    • Select the game folder that the game is located in having the issue.
    • Press Command+I.
    • In the Info box, go to the Sharing & Permissions section and click on the lock to unlock it.
    • Enter your Administrator password when prompted.
    • Make sure you have Read & Write permissions for System, Admin, and Everyone.
    • Click on the Burst icon (cog wheel) and select Apply to Enclosed Items

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