An absolute mess. Can't build, bad practice, not a clue what I'm doing.
If anyone can decipher the mess, what I did was add what *looks* to be the right stuff to the pom.xml in tinkerpop to import the maven repos that should be needed. But Java compiler throws errors.
Then I downloaded all the relevant jars and added them to the build path. According to all the Maven experts and documentation, Maven should mean I don't need to do this. And I know it's bad practice. But now the Java compiler doesn't throw the errors.
But Maven / Tycho (WTF and how do these things work?!) still doesn't build it.