Attempts to associate a project area application under IBM Rational Quality Manager (RQM) results in the error "Failed to determine link types. Problem occurred reading the artifact container catalog: Unable to load URL".
Image of the error:
When two projects are associated with each other, it means that resources in one can invoke and select resources in the other and create a link.
Diagnosing the problem
Verify if the name of the project area contains the special character % (percentage symbol).
Resolving the problem
Rename the project to remove any special characters and then perform the association.