The Blizzard Battle.net desktop app tried to perform an action that conflicts with a process already running. For example, uninstalling the game while actively playing it.
- Wait for the current process to complete, and try again.
Restart the Blizzard desktop app to clear any stalled Agent processes.
- This error may occur when the Blizzard Battle.net desktop app is required but not installed. Please download and install this application and test again.