"Licensing System Error 2" when launching Revit

Autodesk Support

Oct 11, 2024

Products and versions covered

Issue:

When launching Revit, the below error appears:

Autodesk Revit 201x

Licensing System Error 2

Licensing System Error 2

 

Causes:

  • Corrupted C++ files.
  • Missing updates for Autodesk Licensing Service and Single Sign On components.
  • Corrupted LoginState.xml.
  • Security software blockage.

Solution:

Solution 1:

In order to solve the issue, follow these steps:

  1. Close all Autodesk applications.
  2. Open Task Manager > Details tab.
  3. Close the below processes, if any:
    • AdAppMgrSvc.exe
    • AdSSO.exe
    • AutodeskDesktopApp.exe
    • ADPClientService.exe
  4. Go to C:\Users\<user>\AppData\Local\Autodesk.
  5. Delete the folder Web Services (contains the LoginState.xml file).
  6. Sign into Autodesk Account.
  7. Download and install all the applicable updates for your version of Revit:
  8. Launch Revit.

Solution 2:

Solution 3:

Solution 4:

Verify the following:

  • If using the antivirus "Trend Micro", sign in into the Trend Micro Web Portal, and then Devices -> Configure Policy -> Behavior Monitoring -> Approved Program List and add "Revit.exe."
  • If using McAffee firewall or any type of firewall or antivirus in the environment, try disabling it and reinstall Revit.

Solution 5:

Reset License by deleting the following files or folders. 
  • C:\ProgramData\Autodesk\CLM\LGS\ProductKey_ProductVersion.0.0.F\LGS.data
For example, in AutoCAD 2019, the file may be here: C:\ProgramData\Autodesk\CLM\LGS\001K1_2019.0.0.F\LGS.data
  • C:\ProgramData\Autodesk\ADUT
  • C:\Users\user\AppData\Roaming\Autodesk\ADUT (if it exists)
  • C:\Users\user\AppData\local\Autodesk\Web Services\LoginState.xml

Products:

AutoCAD Products; Revit Product Family;

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