Linux error when launching

Solved with :

First remove conflicting java packages:

sudo apt-get remove --purge openjdk* java-common default-jdk
sudo apt-get autoremove --purge

Check weather you successfully removed all related packages by:

sudo update-alternatives --config java

The system shall prompt you there is no Java available to config, otherwise this workaround fails.

Then reinstall required packages:

sudo apt-get install openjdk-8-jdk

Thanks to shvahabi