I'm trying to run the 3.0 emulator for macOS on a HighSierra mac. I had previously installed the 2.3 emulator, so:
- I did a hard reset
- I installed the new 3.0 emulator
- I restarted the mac
Now, when I select Emulator in the Connect menu, I see a dialog saying "Starting the Android emulator. Please wait: this might take a minute or two" forever. Apparently there is no activity at all, except for an (empty) Terminal window appearing in the dock.
I successfully installed the 3.0 Emulator on Catalina and BigSur.