Obtain permissions to edit info.plist
I am having same issue with bouncing folder how tried to do what Dan said and i don't have permission to edit file, how can i disable file permissions or is there a workaround this
To obtain the required permissions:
Navigate to '/System/Library/PrivateFrameworks', right click on 'AssistantServices.framework' and click 'Get Info'.
Click the lock symbol in the lower right corner and enter your account password to unlock the sharing and permissions pane.
Now click the '+' button in the lower left corner and select your username.
Click on the drop-down menu to the right of your username and select 'Read & Write'
Finally, click the settings button in the lower left and select 'Apply to enclosed items'
You should now be able to edit the Info.plist file successfully.
If you cannot, simply repeat the above procedure by right-clicking on the Info.plist file itself. (There is no need to apply to enclosed items this time)
If for any reason you still cannot edit the file, you may need to repair permissions in Disk Utility.