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Error: Unhandled Exception Has Occurred in a Component in Your Application – Just-in-Time (JIT) Debugging

Issue

AutoCAD crashed or froze, and you received the following error message:

Unhandled exception has occurred in a component in your application. ... Application does not support just-in-time (JIT) debugging. See the end of this message for details.

 

This error message may have popped up when you attempted to use a tool that opens a dialog box, palette, or ribbon.

You may see one or more of the following messages in addition to the Unhandled exception error:

  • Object reference not set to an instance of an object
  • eUndoOperationNotAvailable
  • Unable to cast object of type
  • 'Autodesk.AutoCAD.DatabaseServices.Line' to type
  • 'Autodesk.AutoCAD.DatabaseServices.SymbolTableRecord'
  • 'Autodesk.AutoCAD.LivePreview.PreviewRuleProvider'
  • 'Autodesk.AutoCAD.Internal.IPreviewContextProvider'
  • Value cannot be null.
  • Parameter name: stream.
  • Access to the path 'C:\Program Files\Autodesk\..." is denied.

 

Cause

This error results from a problem with the Microsoft .NET framework.

 

Solution

Follow our steps to resolve an issue with .NET 4.7.

Last modified on Jan 08, 2020

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