Revit Has Encountered a Fatal Error and Cannot Continue

A fatal error has occurred. The application will be terminated.

Initial items to check

• Make sure that Revit has the latest update and hotfix installed: Update your software
• Narrow the scope of the behavior by checking if the issue occurs for:
  • Just one Revit model: for these issues, look for solutions that would change the model. A good first step for this type of issue would be opening the model with an Audit.
  • Only on one computer: for these issues, look for solutions that would make changes to the system (this could be Revit, Revit Add-ins, or external components like Windows).
  • Only on one network (for Internet/Cloud related tasks): for these issues, look for solutions that change your network configuration (this could be local settings, or network settings outside of your system).
• Check Revit journal: it records more details on what is happening in Revit, and you can use this to get a better handle on what is happening at the time of an error.

Note: See the following document for information on How to read the journal file from Revit.

When reviewing the journals, check to see if any of the following entries are found, and use the link to find documentation on possible solutions:

• System exception in generateViewSpecificGRep
• DBG_WARN: m_mayModifyEditorOrModScopeMSc IS locked
• DBG_WARN: Where is the default run type
• Exception caught from managed method .Net SqlClient
• Exception caught from managed method mscorlib::Boolean TryExpandShortFileName() <System.IO.PathTooLongException>
• DBG_INFO: Recent Dynamic Added but not to Dynamics
• DBG_WARN: AcDbDatabase::readDwgFile threw an exception

Additional troubleshooting

If the entries above are not found, or the link does not lead to a solution, see the following link for more troubleshooting on this topic: Fatal Error.