Use the Problems view to see error messages.
If there is an assembly diagram error message in the Problems view, double-click on the message and the module assembly that has the error opens in the Editor view to the element that has the problem.
Special component error
If you see a component with a red X and a broken outline in
the assembly editor, it means that since the components were correctly wired,
the definition of the component with the error has been incorrectly deleted. Component4 in
the following diagram has this error:
Related information