Android Studio 2.2. Preview 1 error: “Please use JDK 8 or newer”

问题

On trying to run Android Studio 2.2 Preview 1, it gives the following error on gradle build:

Error:Please use JDK 8 or newer.

If I try and do it from the console it says:

FAILURE: Build failed with an exception.

• Where: Build file 'C:\Coding\Android projects\MaterialScrollBar\app\build.gradle' line: 1

• What went wrong: A problem occurred evaluating project ':app'. com/android/jack/api/ConfigNotSupportedException : Unsupported major.minor version 52.0

I've tried to change the JDK as it suggests from jdk 1.7 to 1.8, but each time I change the JDK location for the project to any other path than the one it currently has it resets back immediately. Even if I change it to other versions of 1.7 it won't change.

I've verified that the environmental variables all point to 1.8 and still no dice. AS 2.1 recognises the JDK as 1.8 for the same project.

回答1:

I ran into this issue with a previous version of Android Studio. When I first installed Android Studio I was able to reference JDK 7 in my Program Files directory.

When I upgraded Android Studio and tried to update it to point to JDK 8, which was also in my Program Files directory, I got the same behavior you are seeing. The new path never took and it still used JDK 7.

Turns out Android Studio does not like spaces in the paths to the Android SDK and the JDK. Installing the JDK in a location that does not contain any spaces allowed me to update the location through the Project Structure window.

回答2:

If you use Android Studio 2.2 Preview 2 and have same error just check "Use embedded JDK" in SDK Location.

回答3:

Use File -> Project Structure to set the SDK and JDK. I think you are modifying a generated file.

Also try adding this in your gradle file:

compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_7
    targetCompatibility JavaVersion.VERSION_1_7
}

回答4:

if you are using 3.0.1 first enable the use embedded jdk option from File-> project structure -> enable use embedded jdk

回答5:

Yes, I strongly agree with Episodex. but still, the problem would occur please do as described below, Click on File menu at the top of the left corner and a select menu of Invalidate caches/Restart...

回答6:

This worked out perfectly when I had an issue with gradle:

1. First verify that your JDK is indeed higher than JDK 8 jdk version .
2. Press Ctrl+Alt+Shift+S to open project structure .
3. Then I selected Use the embedded JDK .
4. Click OK and retry it.

来源：https://stackoverflow.com/questions/37335214/android-studio-2-2-preview-1-error-please-use-jdk-8-or-newer