Undesignated Parts Requiring Annotation
This compiler hint appears when a component in the design is found to have a default designator (with a ? suffix) - either it has yet to be annotated or the designator has been reset. The message is displayed in the Messages panel in the following format:
Un-Designated Part
PartDesignator,
where
PartDesignator is the default designator for the un-designated part (e.g. U?, D?, C?, etc).
Default Report Mode
Warning
Recommendation
Assign a unique designator to the offending component as required. This can be done manually, by editing the designator, or through use of the Annotate dialog (Tools » Annotate). A number of additional annotation-related commands are also available from the main Tools menu in the Schematic Editor.
Notes
Only one error instance will be listed in the Messages panel for each distinct designator type (C?, U?, S?, etc). Multiple errors may exist.