unable to locate adb in android studio 3.1.4

Flutter dart Map with multiple keys for very same value.flutter run -v continuously shows starting a new daemon, xx busy Daemons could not be reused, use -status for details.windows.Can anyone please help me with it? When I use flutter run in powershell it does not run the application in an emulator it asks to choose EDGE.flutter devices command does not recognise android device.Flutter Android Studio does not show errors before run in only one project of mine 'no error or warnings'.my flutter app not be run in android version 8 in real device.Flutter Stripe does not showing payment sheet on ios device.Flutter app(iOS ) does not run on simulator.Flutter initState does not run the method called.Flutter does not recognize android device.app does not work when Run in Flutter in Android Studio is pressed.Not able to run Flutter Project in Android Emulator or Android Physical Device.After uninstall app on device flutter run not work.Built App Does Not Work When Run on Android Device.Flutter run works from CLI, but not from Visual Studio Run menu (androidx.multidex does not exist).flutter run and debug mode only shows white screen in physical android device.Flutter run (syncing files) does not finish.Why Flutter app does not run on chrome with the command flutter run -d chrome.Flutter app does not work on a real iOS device (white screen).Not able to run flutter application on iOS getting CFBundleIdentifier does not exist.Flutter run does not output error message or stack-trace (' Unhandled exception:').Flutter with Android Studio does not show Device List.

Flutter sqflite app does not working on real ios device.Flutter does not prompt the device for an authorization dialog.Flutter - not able to run in android device.flutter run command does not launch in iOS Simulator.Android Studio: Run tab does not display flutter logs - Ubuntu 18.10.The Flutter 'Thin Binary' build phase must run after 'Copy Bundle Resources' Flutter: Runner.app/ist does not exist.Flutter shows Device list,but does not run.

Unable to locate adb in android studio 3.1.4