Revit 2022 Dynamo Loading Issue

Any ideas on how to resolve this issue would be appreciated.

Disable ALL of your Revit add-ins and custom packages. You’ve got a conflict.

Note that Revit 2022 isn’t supported any longer and continued use in production environments is a security risk, so likely the best path forward is to update to a supported build (at which point the Avalon edit issues likely self resolve).

Jacob, thank you for your swift response and l concur l should upgrade.

How would l find out the offending ‘add’-on’?

Check your Revit journal and Dynamo log for the tag around the warning/error.

But the first step is to disable them all to find out if that fixes it.

I have located the journal, however not sure what specifically l am looking for within the journal.

I cannot find the manage add-on tool within 2022?

I looked into Revit add-on folder and pyRevit was there, so l moved it temporarily and restarted Revit 22, then Dynamo, with same error message occurring.

The journals and logs will have words like “error” or “warning” (in some cases all caps, other cases not) where the issues occur. For journals check API_ERROR in particular. You’ll likely have quite a few. Before you dig the first step is disabling everything.

Manage add-ins is a new feature; you’ll have to disable things the hard way or update to a modern (2025+) build. Instructions are readily found in the support article on the topic, linked here:

https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/How-to-Disable-Add-Ins-for-Revit-Products.html#:~:text=Manually%20disable%20add-ins%3A%20If%20you%20don't%20want%20to%20load%20a%20third%20party%20utility%20to%20manage%20add-ins%2C%20you%20can%20also%20disable%20these%20manually%20(expand).

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Diroots produces a free app for this, and stantec has a legacy one here:

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