Create Project Parameter using dynamo or python script

[SeanP]

You cannot directly create Project Parameters from Dynamo because the Revit API has not exposed those methods. You can create them through Shared Parameters and that process has been explained on here many times.

Create Project Parameter from Shared Parameter

Looking at creating a couple Project Parameters from Shared Parameters. In testing my graph, it looks to run as I’d expect when a project is created and Dynamo is opened fresh. However, if I delete the Project Parameters and run it again the Parameters are not recreated. Closing and opening the project and the graph then an error is thrown and the node turns wacky. It appears that the parameter, even though it is deleted actually still exists. Thoughts? [Capture2] [2018-12-12_13-41-09]