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 is opened 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. StockQuote_MediationFlow in the following
diagram has this error:
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