I had to delete all these files and then relaunch Android Studio and create a new emulator with Pixel 3a for Google Play support. Rm -Rf ~/Library/Application\ Support/AndroidStudio* Rm -Rf ~/Library/Preferences/com.android.* rm -Rf /Applications/Android\ Studio.app.
I just reinstalled the Android Studio, and now 30.7.4 is selected in emulator.