For one reason or another my MacBook Pro was put to sleep while Studio One 2 was in the middle of downloading and installing content.
The installations did not finish and now I only get this error when I attempt to install packs from inside the application:
Studio One
Installation Failed!
Unknown Error (/Library/Application Support/Presonus Software)
Unknown Error (/Library/Application Support/Presonus Software/Studio One 2/installhistory.xml)
Downloading packs from the website and installing that way has worked but I'd prefer to leave the machine unattended while it does it's update thing...
I've searched the Presonus forum, FAQ and etc and haven't been able to find any useful information.