Gradle finds wrong JAVA_HOME even though it’s correctly set!
Kotlin could not find the required JDK tools in the Java installation ‘/usr/lib/jvm/java-8-openjdk-
amd64/jre’ used by Gradle. Make sure Gradle is running on a JDK, not JRE.
System: Linux Mint 19.1 64-bit
So i just downloaded flutter and trying to run the helloworld app, I get this error.
I’m not sure why i get this error, my default java points to the JDK version.
When I run the following code snippet from the gradlew file from the flutter project,
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
echo $JAVACMD
fi
fi
Output: /usr/lib/jvm/java-8-openjdk-amd64/bin/java
I ran update-alternatives and configured it as following,
sudo update-alternatives --config java
There are 3 choices for the alternative java (providing /usr/bin/java).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java 1081 auto mode
* 1 /usr/lib/jvm/java-8-openjdk-amd64/bin/java 1 manual mode
2 /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java 1081 manual mode
3 /usr/lib/jvm/java-ibm-x86_64-80/jre/bin/java 80 manual mode
Contents of /usr/lib/jvm/ directory
ls -l /usr/lib/jvm/
total 8
lrwxrwxrwx default-java -> /usr/lib/jvm/java-8-openjdk-amd64/
lrwxrwxrwx ibm-java80-jre-x86_64 -> java-ibm-x86_64-80
lrwxrwxrwx java-1.8.0-openjdk-amd64 -> java-8-openjdk-amd64
drwxr-xr-x java-8-openjdk-amd64
drwxr-xr-x java-ibm-x86_64-80
Few other things I’ve tried,
- Reinstall flutter and SDK Manager
- Create default-java folder with symlink in the /usr/lib/jvm directory
- Declared JAVA_HOME in the gradlew file itself
None of them helped.
How do I make gradle use the JDK version?
P.S. - followed this to setup flutter: https://levelup.gitconnected.com/how-to-install-flutter-without-android-studio-on-ubuntu-6d8b55741afa