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So after some pause in mobile development, I decided to get back to it and so I decided to upgrade Android Studio to v3.3 as well (Windows x64) along with Flutter and Dart. Now my problem is that when I click the device dropdown <no devices> in the toolbar, it displays this:

enter image description here

And when I move the window around the loading item stays in its fixed position until I randomly click somewhere.

enter image description here

Despite this, I can still launch an emulator using the AVD manager, though it won't connect to the application because of this bug. The weird thing is, I also installed Android Studio on my new laptop, but there it does work, so it's probably a fault in my settings.

I've already filed a bug report, but does anyone know a fix or workaround to this problem? Thanks in advance!

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6 Answers 6

Reset to default
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Try reinstalling Flutter and/or resetting the Flutter SDK path under "File > Settings > Languages and Frameworks > Flutter".

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  • Saved me. Thank you.
    – Daniel Egan
    Commented Feb 26, 2020 at 3:44
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I spend time on this issue i got solution

Delete platform-tools

C:\Users\ (computer name)\AppData\Local\Android\Sdk

from this path

And download new Platform Tools from this site https://developer.android.com/studio/releases/platform-tools

then unzip and paste it on this location

C:\Users\ (computer name)\AppData\Local\Android\Sdk

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  • this should be the correct answer.
    – gowtham6672
    Commented Jan 23, 2021 at 22:09
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File -> Invalidate Caches / Restart and click Invalidate and Restart fixed it.

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Check my answer here https://stackoverflow.com/a/56812989/773718

  • Make sure you have Power Shell 5.1 or greater (You can run this command to check $PSVersionTable.PSVersion Update Flutter, Dart and Android studio then restart Android Studio
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This worked for me:

  1. Disconnect all physical android devices connected to the computer
  2. adb.exe disconnect from sdk\platform-tools folder
  3. adb.exe start-server from sdk\platform-tools folder
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Solution 1:

  1. Close Android studio
  2. open task manager
  3. Kill adb process (on Task Manager on Windows)
  4. Open Android Studio

Solution 2:

  1. turned OFF your Wi-Fi

  2. open C:\Users\USERNAME\AppData\Local\Android\Sdk\platform-tools

  3. open command prompt from in this folder

  4. type adb disconnect command in Command promptenter image description here

  1. Restart Android studio

Solution 3:

Go to SDK folder delete platform-tools folder.. invalidate and restart the studio

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  • Your answer could be improved with additional supporting information. Please edit to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers in the help center.
    – Community Bot
    Commented Oct 17, 2022 at 7:21
  • I can only edit your answer here, not on StackOverflow, please do it yourself over there.
    – DarkDiamond
    Commented Oct 17, 2022 at 7:40

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