Hi Folks,
Just encountering something different recently as i updated revit 2025 to 2025.3
After this when i’m opening dynamo Revit lookup works fine, but the moment i call the Python Node. Right from that moment Revit Lookup Stops working and shown with this dialog-box
and this pattern is being followed.
Works perfectly, Thanks @c.poupin but i was curious to find the reason as how just opening the python editor hampers with the lookup dlls…
The lookup tool uses a common component. Could be avalon edit, could be a web component, could be just about anything. My guess is that your Revit journal will indicate which.
issue has been reported and discussed here
opened 10:22PM - 09 Aug 24 UTC
open discussion ☎️
RevitLookup uses third-party dependencies produced by other developers. User plu… gins may also use these dependencies, but of different versions, which will cause a conflict and an exception on startup. We have no control over this process, and we cannot prevent other developers from using third-party libraries.
Why are you getting this error in RevitLookup and not in another plugin? Because plugins are loaded in alphabetical order, and the 'R' is near the end, so that's where you get the exception and RevitLookup not working. Unfortunately, the plugin that is loaded first forces Revit to use it dependencies for all plugins. And if it's outdated, RevitLookup, which uses the newest one, will simply be incompatible, if everything was in reverse order this could have been avoided.
At the moment there are some ways, disable conflicting plugins:
- Use [Revit 2025](https://github.com/Nice3point/RevitToolkit#add-ins-dependency-isolation), in this version RevitLookup dependencies are isolated from other plugins.
- Update user plugins to the newest version.
- You can try to rename the RevitLookup loading manifest, give it a name like `_RevitLookup.addin`. Add-ins are loaded in alphabetic order.
- Downgrade the RevitLookup version.
- Download the [DependenciesReport](https://github.com/jeremytammik/RevitLookup/issues/269#issuecomment-2323309590) tool and analyse conflicts.
- Download the [AssembliesReport](https://github.com/jeremytammik/RevitLookup/issues/269#issuecomment-2323309590) tool and share you report here.
Remember though, you can fix RevitLookup in this way, but there is a chance that conflicting plugins may not work.
RevitLookup dependencies list:
https://github.com/jeremytammik/RevitLookup/blob/dev/source/RevitLookup/RevitLookup.csproj#L45-L71
opened 11:25AM - 12 Aug 24 UTC
bug 🐛
### RevitLookup version
[2025.0.8]
### Steps to reproduce
- open dynamo…
- run a python node (for example: calculate 3+5)
- run Revit Lookup (can not)
### ✔️ Expected Behavior
Revit Lookup can be opened.
### ❌ Actual Behavior
When I open Dynamo and run a Python node (— where I’m only calculating 3+5), whether it’s Python or “Python from Script”, everything works as expected. However, after this, I am unable to open Revit Lookup.
If I debug Revit Lookup, I got this wpf error:
on dynamo Forum: https://forum.dynamobim.com/t/revit-lookup-error-after-running-dynamo-python-node/103472
### Other Software
Dynamo Core: 3.0.3.7597
Dynamo Revit: 3.0.3.4605
Revit Version: 2025.1
Revit Lookup: [2025.0.8]
1 Like
@c.poupin I want to clarify - is this issue resolved with newer versions of revit lookup - was a cause identified, or did it just randomly stop happening with that version?
@Michael_Kirschner2
