Follow these steps to resolve the issue:

  1. Create a Root User account on the computer using the steps outlined in the Apple technical article at the following URL: http://docs.info.apple.com/article.html?artnum=106290

  2. Log in as the Root User

  3. Set the permissions on the FILESERVER to Read & Write for the main folder and select Apply to Enclosed Items.

  4. Try to check in the Assets.

Background:
These errors are produced because there is a permissions problem on the File Server location where the files are stored. In one case where this was reported, the File Repository was set on the same machine as the QPS Server. The permissions were set correctly on the FILESERVER folder, but new folders created within the FILESERVER location were assigned Read Only permissions.