Integrations (PTC products, 3rd party products and code) > 3rd party product integrations (CM, DOORS, Rose, Simulink and XML) > Integration for IBM Rational DOORS > Troubleshooting > The root object is linked to the previous version of the model (Integration for IBM Rational DOORS)
  
The root object is linked to the previous version of the model (Integration for IBM Rational DOORS)
A root object (the surrogate module or a surrogate object) links to a specific version of a model. If you create a new version of a Modeler model and you want a root object to link with that new version, you must synchronize the root object with the new version of the model from Modeler.
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The location of the linked Modeler model is stored in the ART Model Directory attribute of the root object (the surrogate module or a surrogate object).