Grasshopper python can't run

Continuing the discussion from GH Python error on first run (Rhino 6 Beta):

Now that I’ve switched to Rhino6, the problem persists

I don’t understand the error messages. Any help?

this solved it
However, deleting ironpython screwed up my Revit Dynamo’s python node. I can’t seem to have both ghpython in Rhino6 and python in Revit dynamo. Any ideas?

Try this?

Link to discussion

For completeness: it does appear that the Dynamo team are now aware of this issue and will (hopefully) change their IronPython distribution method accordingly: