HanjiZoeCat950,
You need to image your RIO, that error is reporting the RIO should have image v19.
https://wpilib.screenstepslive.com/s...g-your-roborio
And instructions for RIO java install are
https://wpilib.screenstepslive.com/s...ller-java-only
Generally I recommend you start at the top of this list and work thru each relevant section.
https://wpilib.screenstepslive.com/s/4485