This error is reported if you selected a test object in Test Designer and then selected Test Designer > Open source model.
Error message
The test object does not contain any source model information.
Cause
The test object was created in Test Designer (Test Designer > Create test object). Therefore, it does not have any occurrences in any model associated with the project.
Solution
Source models can be displayed only for test objects that have been transferred from the database and have an occurrence in a model.