Dynamo Will not Launch - System.ArgumentException

[chuongmep]

REVIT 2021 Dynamo Will Not Open

Seems like it is related to this.

Dynamo not loading in Revit 2021

Dynamo not loading in Revit 2021. below error is appearing when i click on Dynamo icon. [image]

Can't open dynamo in Revit 2021

This appears to be the analytics issue which has plagued a few users of late. Now seeing ~2 a day. I have requested a hotfix and/or tool to fix the issue, hopefully we’ll get some movement in the long term. As of now I am not yet sure how to resolve the issue, but add-ins will not help. @Kzs_David please submit a ticket to the Revit support team so we can get you in touch with the right people, and get you sorted. Best to do so via the accounts portal at Manage.Autodesk.com.

If you cannot launch Dynamo in Revit 2021 with NullReference IsOptedIn error

We have been getting more reports of an issue affecting Dynamo / Autodesk analytics. There are a few analytics launch issues floating around the forum so please check the stack trace here to ensure you’ve seen this particular stack trace before trying this workaround. [2023-03-07_06-41-51] We believe the issue is with an update to ADP - Autodesk’s analytics component that Dynamo uses. This can be installed globally automatically or by other applications - a particular version 4.4.0 causes is…