TypeError: Cannot read property 'forEach' of undefined

ok... i fixed it. I added the debug that @knolleary had suggested in another post. Error loading node-red - #2 by Steve-Mcl

and it told me the following on start-up:

Path: C:\Users\<username>\.node-red\node_modules\node-red-contrib-amqp

I deleted that folder and everything in it... now starts up ok.