Due to a null parsing job the editor is unable to perform the action.
Explanation
The error occurs when opening a declaration in an
item where parsing did not occur. The error can occur if annotations
and tools are disabled and the F3 key is pressed to open a declaration.
User response
Verify that the tools or annotations are enabled.
Try the process again. If the tools and annotations are enabled or
the problem persists, contact IBM Software Support.