why i receive the error message
maybe you fed it wrong data? maybe data is missing in the component you plugged into it? so many questions and guesses, difficult to discern from a screenshot, not everybody knows what you are doing there, if anybody at all. posting at least a thorough explanation would help, better even you post all relevant files. basically what is written in the post above.
I’m simply trying to understand the “DATA INPUT” and “DATA OUTPUT” commands in Grasshopper 1.
I’ve read some posts and understood that I could use them to link grasshopper definitions to one file. But it seems not to working on my Rhino 8.1 Mac.
Does no other one have this issue?
It was reported last week, you can follow the progress of the bug report here.
ah ok, thanks for your message
RH-78397 is fixed in Rhino 8 Service Release 2
Thank You, Brian