Gradle Sync Failed in Android Studio 3.6 Cause invalid type code :85

I found out that some people might use Android 4.0 with Java 14 and Gradle 6.1.1 like me. And they are not supported for each other, so just update Gradle to 6.5.1; it will solve the problem. To update Gradle, click in the Android Studio tab: File -> Project Structure -> Project. Then, change the Gradle version to 6.5.1.

Thanks, it was very helpfull!

I was having the same issue. I solved it by changing the JDK version I was using which was JDK 13.

1. Go to File -> Project Structure.
2. On the left side, click on SDK Location and go to JDK Location.
3. Change it to the Embedded JDK that comes with Android Studio.
4. Click on OK.

If you using Android Studio 4.0 or up and having Errors like below

    Cause: invalid type code: 17
    Cause: invalid type code: fe
    Cause: invalid type code: 13
 Cause: invalid type code: 85

Or

Its says that something wrong with JDK then Follow below steps to resolve the error.

Step 1: First delete .gradle and .idea folder from project directory and restart Android Studio. Make sure it's gone from recycle bin.

Step 2: Go to Project Structure

Step 3: Select SDK Location from the left panel on Project Structure window.

Step 4: Go to JDK Location and click on down arrow then select the jre instead of jdk

C:\Program Files\Android\Android Studio\jre

And it will Solve the errors. Rebuild the project

Note: jre come with the android studio 4 installation not sure about the older version.

This solution work for me.