Installation issue Altera EDS 17.0.0.290 on Ubuntu 16.04.3 LTS

Hello,

I have installd the EDS on my Linux System \usr\local\DS-5\

Compiling my code runs well and the Eclise GUI seemto be working well.

But I get always the following error message when I try to open the USB Blaster in the Debug config in the Eclipse GUI.

Error executing the device_browser.py

When I execute the device_browser.py stand alone in the terminal I get:

ImportError: Can't find modul Java.lang

Additional when I run the post_installation Shell script from the LINUX terminal, I get the message: "No Default toolkit set" at the end.

It would be very nice if somebody could help me.

Regards

Tom