Android studio error After run the project

Question

I am getting following error while trying to run my app from android studio

Execution failed for task ':app:compileDebugJava'. Cannot find System Java Compiler. Ensure that you have installed a JDK (not just a JRE) and configured your JAVA_HOME system variable to point to the according directory.

After searching on internet, I found some solution like this

export JAVA_HOME=/usr/lib/jvm/jdk1.7.0_45/ 

so i gave this command in terminal from android studio dirctory but its not workout it show the same error again.

Answer 1

In your android-studio find it in File->Other Settings->Default Project Structure->SDKs. Then i changed JDK home path.

Answer 2

Updating my Gradle build version did the trick for me.

Old:

classpath 'com.android.tools.build:gradle:1.0.0'

New:

classpath 'com.android.tools.build:gradle:2.2.3'

Edit: Since this answer is still being used frequently, note that Gradle 2.2.3 can probably be substituted with any newer version of Gradle. This version just happened to be the version I was using when I originally answered the question.

Answer 3

To fix this error in Andriod Studio 2.3.1 I had to go to File > Project Structure or Ctrl+Alt+Shift+S then go to SDK Location which was already open for me and then uncheck "Use embedded JDK" and point to where my installed version was.

Answer 4

To fix this error in Andriod Studio 2.3.1 I had to go to File > Project Structure or Ctrl+Alt+Shift+S then go to SDK Location which was already open for me and then uncheck "Use embedded JDK" and point to where my installed version was.

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The mentioned post really solved my problem after long searching.

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Answer 5

In the android studio

Window -> preferences -> Java -> Installed JREs and select your JDK home path

or else please follow the link to set JAVA_HOME in linux machines

Answer 6

In your android-studio find it in File->Other Settings->Default Project Structure->SDKs.
Then Check with JDK LOCATION select Installed JDK Location and APPLY IT.

Answer 7

I have this problem a lot when I try to open older projects for the first time. It seems that I just need to update the classpath under build.gradle:

In my case the old version was:
classpath 'com.android.tools.build:gradle:1.3.0'
and I updated to:
classpath 'com.android.tools.build:gradle:2.3.2'

Sync the gradle and it should compile.