Emulator not running on MAC


I am working on App inventor for one of my coding classes but recently the emulator won run on my Macbook Pro. I get the following message Performing clean boot: Snapshot doesn't exist.

I have installed MIT_App_Inventor_Setup_3.0rc3 and removed it a number of time. I have also installed AppInventor_Setup_v_2.3.

Any help will be greatly appreciated.

Thank you,

This is fine. We've disabled snapshot boots by default in version 3.0+ because they require significant space. You can always enable the option in the emulator properties after a successful boot.

Which version of macOS are you running? The setup tools version 2.3 won't run on macOS 10.12 and higher, so you'll need to be running 3.0 or higher in that case.