I installed Honeybee 0.1.9 on Dynamo 2.0.2 but when i run this script
error: honeybee is not installed
Oh I just had the same. Do you have multiple package paths? It only looks in the first one in the list if you do. Changing the order of the package folders (So the one with Honeybee in was first) solved this error for me.
Otherwise if you go into the node you can see how it looks for the path. If you installed to some wierd location you could maybe change it in the python script.