I am new to Orekit. I installed orekit Project and orekit-data. I ran the Keplerian Propagator example, as well.
But, with the next example, I got error for “com.sun.tools.javac.tree.”
I have gone through this forum. There was a post with similar topic, it says to build with JDK 11. Also, try to build with JDK 11. But, no fix.