Why ADB Error occurred after upgrading to Android Studio 4.0

Issue

I was using Android Studio 3.6 (On Windows 10) and as Android Studio 4.0 rollout, I upgrade it.

Now I am getting a problem when I want to start emulating devices.

Unable to Locate and

Thought the emulating device fire up, but can install the debug app there anyway.

I looked for the platform-tools directory, I feel everything is fine there. I even uninstall and reinstall the platform-tools. I have uninstalled and reinstall android studio 4.0. I also try around some suggestions for the older version of Android Studio and the ADB problem, but without success yet!

I don't know this happens in Android 4.0 alone! Any suggestions and help will be appreciated.

I had solved it now. I uninstalled the emulator and reinstall it, this solved my problem.

Solution

My coworkers had this problem. After several hours of debugging, we found out that there are duplicate and conflicting environment variable for ANDROID_SDK_ROOT, ANDROID_PATH and ANDROID_HOME after updating to 4.0. The problem solved by changing those value to the same one in Android Studio at File -> Project Structure.

For reference, here are my env variable

Answered By - DTechnlogy