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Waiting for all target devices to come online (Windows 10, Android Studio 4.1, all SDK is updated)

Discussion in 'Android Development' started by AlexEv, Dec 7, 2020.

  1. AlexEv

    AlexEv Lurker
    Thread Starter

    Hi, guys, I'm developer with big experience but newbie in Android. I have installed to my Windows 10 absolutely fresh Android studio
    Android Studio 4.1.1
    Build #AI-201.8743.12.41.6953283, built on November 5, 2020
    Runtime version: 1.8.0_242-release-1644-b01 amd64
    VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
    Windows 10 10.0

    And a lot of various SDK, all is fresh releases.
    Than I have downloaded test project (I select sunflower). And three days I can not start it.
    I learn a thousands various recipes, but still receive message - Waiting for all target devices to come online
    I try to start Android studio as administrator, try to on/off various Window options (like enable/disable HyperV).
    I try various options in device emulator, like wipe or cold start. But I have no changing. Device emulator not connected.
    adb devices show me:
    List of devices attached
    emulator-5554 offline

    In Android studio I see:
    xx.xx * starting now at tcp:5037
    xx.xx * daemon started successfully

    And Launching I still see :
    Waiting for all target devices to come online

    What going wrong? Any ideas please..

    Attached Files:

    1. Download the Forums for Android™ app!



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