Auto-Weka only works on Java 8. You probably have a higher version of Java.
I wrote on github (https://github.com/automl/autoweka/ ) asking for support
even for Java 11, but it seems that those who have programming knowledge do
not want to bother and the answer I received was: "Pull requests welcome".
It is a pity that I have no experience in java, otherwise I had already done
I do not believe that this problem is gonna be solved in the upcoming
future. I am quite familiar with the Auto-WEKA code, and I can hardly
imagine that Lars will get back to clean up all of that. Maybe a student
I am authoring the ML-Plan tool, which I would dare to say is a much
better solution for AutoML with WEKA. Not only in terms of
configurability but also in terms of performance. The pity is that
ML-Plan does currently does not come with a GUI, so it currently only
works in an IDE. Within that, it is not too hard to setup though, and
there is enough documentation to do so for somebody roughly familar with
We are working on a GUI. But this may take some time (do not count with
this until Summer). At least, for the next release, there will be a
binary with a command line interface to alleviate this pain.