My .gh file "is not a Rhino m_archive"

Grasshopper
1

Hi All,

On my Mac, when clicking a .gh file, I get a popup saying:

Screenshot 2024-11-22 at 11.33.34
Screenshot 2024-11-22 at 11.33.34776×634 118 KB

On clicking OK, it says:

Screenshot 2024-11-22 at 11.33.58
Screenshot 2024-11-22 at 11.33.58788×812 159 KB

Clicking Yes then starts up Rhino, but with no sign of the grasshopper window.

Starting Grasshopper from the toolbar and manually opening the .gh file works fine, and the script displays its results… but Bake does not work!

If I cut-and-paste the entire script into a new script I can get it all to work.

But… what got me into this and what is the right way to get out of it? I see other mentions on the forum of this error message, but no actual solutions to the issue. Note that this is a .gh file, not a 3dm file. There is no ‘Revert’ option in the Grasshopper File menu.

Many thanks,

Bob

2

Here is my .gh file, in case you want to have an example that fails. It uses only standard components, and simply calculates and lays out the Pythagorean Triples.

Pythagoras3.2.gh (42.6 KB)

Cheers,

Bob

3

Hi @bob.h.mackay,

Make sure you click File > Open from the Grasshopper menu and not the Rhino menu.

— Dale

4

Thanks for responding.

Yes, that does appear to work. Excellent!

However, what fails is

  1. Doubleclicking on the .gh file in the finder window

or

  1. Opening Rhino and clicking on the .gh file in the ‘Recent Files’ view.

Thank you for the workaround though.