<error text> Use the previous version of PowerCenter to backup the repository contents and restore them to a new repository with a name that contains valid characters. Then rerun the upgrade utility.
The <RepositoryName> property in the Repository Agent contains a tab character, a trailing space, or one of the following characters: ? " : < > * / \ | .
Back up the repository, restore it using a name that does not contain these characters, and the upgrade the Repository Agent configuration file again.