./gradlew The operation couldn’t be completed. Unable to locate a Java Runtime

Question

When I run ./gradlew from project folder I get:

./gradlew
The operation couldn’t be completed. Unable to locate a Java Runtime.
Please visit http://www.java.com for information on installing Java.

The same with java:

which java
/usr/bin/java

/usr/bin/java
The operation couldn’t be completed. Unable to locate a Java Runtime.
Please visit http://www.java.com for information on installing Java.

I installed JDK in Android studio, seems it's installed in ~/Library/Android/sdk/sources/android-28

Setting export JAVA_HOME=/Users/mrgloom/Library/Android/sdk/sources/android-28/ or export JAVA_HOME=/Users/mrgloom/Library/Android/sdk produce error like:

ERROR: JAVA_HOME is set to an invalid directory: /Users/mrgloom/Library/Android/sdk/sources/android-28/

Please set the JAVA_HOME variable in your environment to match the
location of your Java installation.

How to specify java path for gradlew ?

Sounds to me like you should be using `brew install openjdk@8` — OneCricketeer, Aug 09 '21 at 10:47
Seems JDK is shipped with android studio: https://developer.android.com/studio/intro/studio-config — mrgloom, Aug 09 '21 at 10:52
It is, but this is meant to be used by the IDE, only, IMO. If you are expecting to individually run Gradle or Java commands outside the IDE, then install it _outside of the IDE_ — OneCricketeer, Aug 09 '21 at 10:56

score 50 · Accepted Answer · answered Aug 09 '21 at 10:59

50

Using JDK shipped with Android Studio and setting export JAVA_HOME=/Applications/Android\ Studio.app/Contents/jre/Contents/Home helped me.

answered Aug 09 '21 at 10:59

mrgloom

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In my bash profile, I had to include it with quotes instead of the backslash `export JAVA_HOME="/Applications/Android Studio.app/Contents/jre/Contents/Home"` – beyondtheteal Nov 16 '21 at 00:51
Thanks guys, helped for newly installed AS without the need to install Java. – kodartcha Sep 13 '22 at 13:02
13

For Android Studio Electric Eel and OSX Ventura 13.1 the AS JDK was in a different ```jbr``` folder: ```export JAVA_HOME="/Applications/Android Studio.app/Contents/jbr/Contents/Home"``` – Oliver Metz Feb 22 '23 at 01:04

score 0 · Answer 2 · answered Sep 20 '22 at 15:42

Might need to clear caches and restart the studio. These steps worked for me -

Set Java home. You can use embedded JDK in Android Studio.

export JAVA_HOME=/Applications/Android\ Studio.app/Contents/jre/Contents/Home.

Use Setting Java Home in MAC for reference if required.

Close terminal
Invalidate Caches & restart - Include 'Clear file system cache and local history'

./gradlew The operation couldn’t be completed. Unable to locate a Java Runtime

2 Answers2