The Upgrade Client Software feature of Remote Desktop may fail for some clients. The system log on affected clients contains the message:
localhost /System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent: CheckDestination: Package install folder is invalid.
You can resolve the issue with either of the following solutions:
sudo chown root:wheel /private/tmp
This command must be run on the client system as an admin user.
Tip: If the issue affects many clients, you can use the Send UNIX Command feature in Remote Desktop 2.0 to run chown root:wheel /private/tmp as the root User. You can't do this with version 2.1 of the Remote Desktop admin application, because 2.1 does not allow 2.0 clients to be targeted for UNIX Command tasks.