Can't start Agenda after migration to new Mac

What I did: I used Apple’s file transfer feature to move all my files to a new MacBook

What happened: I can no longer start Agenda. I get an error message saying Could not start up the Agenda library: The file couldn’t be saved because you don’t have permission.

What I expected: To start Agenda.

Things that might be helpful to know (Agenda version, OS and model, etc):
macOS 10.5.5
I can’t get the Agenda version since I can’t start the program.

If you have the latest 10.0.2 version of Agenda, you can get to the data like this:

  1. Quit Agenda
  2. Click on Finder
  3. Choose Go > Go to Folder
  4. Enter ~/Library/Group Containers
  5. Find the folder called WRBK2Z2EG7.group.com.momenta.agenda.macos

If you don’t find it, or it doesn’t have much data, it probably didn’t migrate properly. If you can, locate the same folder on the old computer, and copy it over to this same location. Then launch Agenda.

Kind regards,
Drew