no jdk found when opening pycharm?

Question

i have installed pycharm but when i want to open it this error occurs.

No JDK found. Please validate either PYCHARM_JDK, JDK_HOME or JAVA_HOME environment variable points to valid JDK installation.

but i have installed java.

output of echo $JAVA_HOME is /opt/java/jdk1.8.0_74/.

output of echo $PATH is /opt/java/jdk1.8.0_74//bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games.

what can i do?

Answer 1

In my case helps

export JAVA_HOME="/usr/lib/jvm/java-11-openjdk-amd64"
export PYCHARM_JDK="/usr/lib/jvm/java-11-openjdk-amd64"

in .zshrc or in .bashrc file.

JAVA_HOME used to be enough, but after the update it started to work only after adding PYCHARM_JDK.