I tried to develop app using Flutter(using Android studio IDE).Add flutter plugin & flutter SDK in studio and Everything is configured but emulator / real time device are not listed. Its shows error like "Unable to list devices: Unable to discover Android devices. Please run "flutter doctor" to diagnose potential issues"
configure flutter in terminal to detect Android SDK and Android Studio:
$ flutter config --android-sdk /path/to/android/sdk
$ flutter config --android-studio-dir /path/to/android/studio
then restart Android Studio/Intellij. source: https://github.com/flutter/flutter-intellij/issues/2113#issuecomment-383412308
May be there is no AVD's to list down. And if emulator runnig, intelliJ will grab it.
In Android Studio, you can create a AVD using AVD Manager or using Terminal. Here is how you can do that using Terminal,
First, go to the android sdk installed directory -> tools
and copy the path and in the terminal type cd and paste the path and press enter. Now yo are in the tools directory.
Next, using terminal type:
emulator -list-avds - to list created AVD's(You should be in tools directory to run this command).
If there is a device type emulator -avd <name>. else you can create a one:
type cd bin then,
Use:
avdmanager create avd -n name -k "sdk_id" [-c {path|size}] [-f] [-p path]
As a example:
avdmanager create avd -n Nexus -d 23 -k system-images;android-23;google_apis;x86
Then again go back to tools directory by typing cd .. and type emulator -list-avds. This command will list your created AVD.
To run a AVD type:
emulator -avd <name>
About AVD.
Had the same problem after moving avd's to another disk.
I managed to solve by making ANDROID_HOME system variable to point to the android sdk path.
来源：https://stackoverflow.com/questions/49222658/device-list-doesnt-shows-in-android-studio-using-flutter