Honeybee_Write Therm File - error regarding empty path name

I’m new to Grasshopper, and I’m trying how to run a therm model using the Honeybee plugin. To try to understand how a file runs, I’m looking at the Parametric therm model example file from Hydra (attached and at the link below). I get an error that says “solution exception: empty path name is not legal,” as shown in the attached image. Is this in reference to the working directory and/or file name? I have inputs for both of these without spaces or underscores in the names. I have Therm version installed on my computer, do I need a specific version to run the plugin in Honeybee?

Thank you, any help would be appreciated!


Parametric_THERM.3dm (220.0 KB) Parametric_THERM_Model.gh (539.6 KB)

Hi - for questions related to Honeybee, please see the dedicated forum here:

Hi Sjd5225,

Did you get this problem solved? I am encountering the same problem as yours.

Kind Regards,

For me, I eventually found that the issue was related to the version of Therm I had installed. Honeybee only works with Therm version 7.6, not the newest version, which is 7.7. Once I installed 7.6, it worked right away. Also, I was able to keep both versions of Therm installed without it causing any issues.