I'm trying to upload a workflow with an external activity. My assebly TBB is uploaded intoa folder and now I'm trying to save my Visio flow into Tridion. However when I click the "save to tridion" button I get an error:
Could not load file or assembly 'Tridion.ContentManager.CoreService.Workflow'...
Here is a screenshot of the full error:
-- UPDATE --
I've checked the WF service is running as well as the WFListener website and its connection pool.
-- end update --
I've googled around and found this answer to what looks like a similar problem: TcmUploadAssembly tool throws error while uploading dll. Does this mean that the Tridion.ContentManager.CoreService.Workflow need to be added to the GAC, or is there something else that I've missed?
My External Activity script is as follows: