[gradle] Could not find tools.jar

$ where is java
java: /usr/bin/java /etc/java /usr/share/java

$ ls -l /usr/bin/java
/usr/bin/java -> /etc/altertatives/java

$ ls -l /etc/altertatives/java
/etc/alternatives/java -> /ujsr/lib/jvm/jre1.8.0_251/bin/java

$ update-alternatives --list javac
/usr/lib/jvm/jdk1.8.0_191/bin/javac

$ export JAVA_HOME=$(dirname $(dirname $(update-alternatives --list javac)))
$ echo $JAVA_HOME
/usr/lib/jvm/jdk1.8.0_191

 

 

gradle Re-build

 

 

* update-alternatives --list javac 했을때, 경로가 여러개 나온다면, JAVA_HOME export를 직접 해준다.

ex. export JAVA_HOME=[자바경로]