I am working in C# currently and I want to use the PullFaceBuilder. I am setting it's Motion.Option property to Option.Dynamic. When I run the code it is coming up with a NullReferenceException. Does anybody know why this is? Am I forgetting to set something?
Yes. A "null reference" error tells you that something that should have a value assigned does not.
Are you are setting the "dynamic" option in hopes that the journal will set the options and start the command, letting the user take over for the final input? If so, it won't work. Journals are not designed to work that way. If I have misunderstood what you are trying to accomplish, please clarify.