Ironbug to DF: 1. Solution exception:'str' object has no attribute 'ToJson'

Watch the Ironbug tutorials, @Geo_curious
https://www.mpendesign.com/category/tutorial/

And search the forum for related posts like this one:

You’re connecting the output message to the DF Detailed HVAC, which, as Mostapha says, is not how it’s supposed to work.