You don’t have permission to save the file “SourceTree” in the folder “Application Support”.

[Florian Bartels]

I receive the following error message many times during startup of SourceTree.

You don’t have permission to save the file “SourceTree” in the folder “Application Support”.

[stevestreeting · Accepted solution]

You must have changed the permissions for the folder ~/Library/Application Support at some point. Most applications would have trouble if you don't have write access there, e.g. http://forums.macrumors.com/showthread.php?t=1090535 - this is the default place for user application data on Mac OS X.

You may be able to resolve this using Repair Permissions, otherwise open a terminal and navigate to ~/Library/Application\ Support and check the permissions there, you must have write access.

[Florian Bartels]

Thank you. Somehow I was missing write permissions on the Application Support folder.