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Fix “Unable to locate adb within SDK” in Android Studio

  • Last Updated : 11 Jun, 2021

The following error occurs when the adb file is not found within the SDK system folder. A software development kit (SDK) provides the software required to build your applications for a target platform.

Method 1 (Using Android Studio IDE)

To resolve this, firstly you need to check if the adb is even present in the SDK folder. For this, open C:\Users\Username\AppData\Local\Android\Sdk\platform-tools, check if adb.exe is present.

Case 1: If adb is not present:

If the adb is not present, installing the platform-tools resolves the problem. For this, open Android Studio, click on SDK Manager in the toolbar or click Tools > SDK Manager, click on SDK Tools, then check-mark ‘✓’ Android-SDK Platform-Tools (as shown below).



Case 2: If adb is present

This generally occurs if the platform-tools are not installed properly. Reinstalling the platform tools might fix this problem. Open Android Studio, click SDK Manager in the toolbar or click Tools > SDK Manager, click SDK Tools, then uncheck Android-SDK Platform-Tools (as shown above). After this, open C:\Users\Username\AppData\Local\Android\Sdk and delete the platform-tools folder. Then go back to Android Studio and in the SDK Tools, check-mark ‘✓’ Android-SDK Platform-Tools.

Method 2 (Using sdkmanager command-line tool)

If you’re using Android Studio, you can simply use the IDE instead of this method and manage your SDK tools as stated in METHOD 1.

Case 1: If adb is not present

Install the platform tools. For this, open C:\Users\Prasoon\AppData\Local\Android\Sdk\tools\bin\sdkmanager. Type in:

sdkmanager "platform-tools"

Case 2: If adb is present

Reinstalling the platform-tools might fix this problem. For this, open C:\Users\Prasoon\AppData\Local\Android\Sdk\tools\bin\sdkmanager. Type in:

sdkmanager --uninstall "platform-tools"

Now the platform-tools are uninstalled. Open C:\Users\Username\AppData\Local\Android\Sdk and delete the platform-tools folder from there.

Now you need to reinstall the platform tools. Go back to the sdkmanager command-line tool and type in:

sdkmanager "platform-tools"

Method 3 (Check your anti-virus)

Sometimes, the windows security might quarantine adb.exe. You can simply resolve this issue by checking if the file is quarantined. If so, select the Allow on device option (as shown below).

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