Vault Login shows Illegal Null Parameter Extension Error


When Vault 2022 or 2023 users sign into their Vault client with an Autodesk ID authentication method, this 'Extension Error' appears:  'Illegal null parameter':




This 'Illegal null parameter' is caused by a temporary access disruption to the Autodesk cloud services that authenticate an Autodesk ID account's access to Vault .



If available, use either the Vault account authentication method or Windows account authentication method until the Autodesk ID authentication method is once again available.



About the Author

Bob Felton

Sr. Technical Support Specialist, Manufacturing<br><br>Bob Felton has been supporting Autodesk products for over 25 years including core AutoCAD, P&ID, Plant 3D, AutoCAD for Mac, AutoCAD Mechanical, and Vault. His background is in graphics with an Applied Sciences degree and ten years manufacturing experience drafting, as well as technical illustration, image editing, and even patent drafting.

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