Error code 5

[jnoordzij]

I am working with Dynamo and the Revit API to place some family instances into a model. 

I get a strange error code that I have never seen before, and I cannot place it:

Exception: Error code: 5. 

There is no extra information given. 
I am suspecting that it is a Revit error. I don't believe it is a Python error. Probably not a Dynamo error. But I'm guessing. 

See link to Dynamo forum post here where you can see screenshots.  (see post 😎

Does anybody know if this is a Revit error or any other ideas what it might mean? 

Place workplane based family - Revit - Dynamo (dynamobim.com)

[jnoordzij]

I believe I have it. Some vectors that I fed into the nodes were apparently not the vectors that the node expects (or I expected). They lie in the wrong plane and therefore the node doesnt work.