Integrations (PTC products, 3rd party products and code) > 3rd party product integrations (CM, DOORS, Rose, Simulink and XML) > Integration for IBM Rational DOORS > Troubleshooting > Error message: One or more DOORS objects were found with duplicate Modeler IDs (Integration for IBM Rational DOORS)
  
Error message: One or more DOORS objects were found with duplicate Modeler IDs (Integration for IBM Rational DOORS)
This message appears when one or more DOORS objects in the DOORS module are using the same Modeler ID.
When this message occurs, Integration for IBM Rational DOORS abandons the synchronization and records which objects are causing the problem in the log.
To resolve this problem, you must delete one of the objects, purge the module, and then repeat the synchronization.
This message can occur after upgrading Modeler and synchronizing a DOORS module that was synchronized using DOORS Synchronizer version 7.4 or earlier:
If a DOORS module was synchronized using a DOORS Synchronizer Mapping that was Group By Type, included Stereotype as a type and specific Stereotypes as types, each Stereotype that was used as a type will appear twice in the DOORS module; once as a header and once as an object in the Stereotype group.
In the new Integration for IBM Rational DOORS, having two Module objects that use the same Modeler item id results in Integration for IBM Rational DOORS abandoning the synchronization. When this happens, the log will report that 'One or more DOORS objects were found with duplicate Modeler IDs' and it records which objects are causing the problem.
To resolve this problem, in the DOORS module delete the object for the Stereotype in the Stereotype group, purge the DOORS module, and then repeat the synchronization.