Affected versions: 21 (5011.0, v2.0) | Severity: workaround applicable | ID: 238045
If you had to remove your Grasshopper-ARCHICAD Live Connection Add-on from your Mac computer for some reason, and then you try to reinstall it, the installation may fail with the following error:
Just copy-paste the following line into the window of the Terminal App, and then press Enter.
sudo pkgutil --forget "com.graphisoft.ArchiCAD.Goodies.GHACLiveInstaller"
After this, the installation should go through without any hiccups.