Запустите эмулятор без Android Studio.
emulator -list-avds
emulator -avd Nexus_5X_API_26(emulator name)
Mobile Star
emulator -list-avds
emulator -avd Nexus_5X_API_26(emulator name)Mac
Use the following instructions for macos:
Start Android Studio.
Open plugin preferences (Preferences > Plugins as of v3.6.3.0 or later).
Select the Flutter plugin and click Install.
Click Yes when prompted to install the Dart plugin.
Click Restart when prompted.
Linux or Windows
Use the following instructions for Linux or WIndows:
Open plugin preferences (File > Settings > Plugins).
Select Marketplace, select the Flutter plugin and click Install.