Run Energy Simulation "Surfaces error"

[Worrily]

Im just following the tutorial video by Chris Mackey on Youtube, and I encountered the issue as the picture shows. I have no idea whats wrong with my document.

[OmidmRashidi]

Try to change Rhino model document to Meters and Recompute the GH:

Error The simulation has not run correctly

The unit is Not set correctly in your Rhino model document. Change RH unit document from millimeters to Meters from Rhino options. [image] You can see the units at the bottom of the window. You can right click on units and select Unit Settings or simply type units In Rhino command line and change it to meters. Now in Grasshopper, recompute your Grasshopper solution by using Right-click >> Recompute.

[Worrily]

Ah many thanks, it worked. But here comes a new situation as the picture showed.

[OmidmRashidi]

see this and this disscusion.

p.s. Also, Ladybug Tools Forum Guidelines can be useful.
best.