Unable to launch dynamo 2.x - plugin conflict

Developers
1

Long time no see, dynamo community. I have rejoined you because a plug-in I’ve written for Revit seems to conflict with Dynamo - users see this error when dynamo 2.x launches:

System.ArgumentOutOfRangeException: StartIndex cannot be less than zero.
Parameter name: startIndex
  at
Dynamo.Applications.DynamoRevit.InitializeCoreModel(DynamoRevitCommandData commandData)
  at
Dynamo.Applications.DynamoRevit.ExecuteCommand(DynamoRevitCommandData commandData)

If I make some changes to the way my add-in handles assembly loading, dynamo loads, but the lefthand library/component browser doesn’t show up:

image
image.png2022×1520 609 KB

Any idea what sort of a conflict might be responsible for this issue? I’m drawing some WPF windows, using Newtonsoft.Json.dll, and relying on CefSharp to render a lil browser window. Any thoughts as to who the culprit might be?

2

aha… something to do with cef apparently… https://github.com/DynamoDS/DynamoRevit/issues/1968

3

There have also been some issues with NewtonSoft as well I believe.

4

Pinging @Michael_Kirschner2

5

If you haven’t seen it already… @Konrad_K_Sobon http://archi-lab.net/dll-hell-is-real/

6

What version of Revit is this? starting with 2019.1 - revit is shipping a standard cefsharp version and forcing it to load first. Make sure to align with that version - for older Revit versions Dynamo is likely using CEF 57.

7

I figured it out… just needed to revert to an earlier version of CEF / CefSharp (v57 seems to have done the trick).

1 Like
8

also see this for more info:
https://forums.autodesk.com/t5/revit-api-forum/revit-2019-1-add-in-and-cefsharp-library/td-p/8205740

1 Like