No source: Other: Module 1,01,02 Block 1001 used - configuration built
A block appears with this message if it appears not to have a source and is not in any of the other documented "source not found" categories.
If you build a project with no configuration (CLD, CAD or LAD files), this message tells you that no checking could be done to verify that blocks used have sources. Tags, for example, cannot be verified if you do not have the configuration built.
This message is likely to show an error in the system configuration. It should be reviewed. The issue raised may be in unused logic or graphics, or have other realities that make it a non-issue.
Please contact us for help resolving your error messages.