No Robot Code on RoboRIO

[generaldgibson]

Last week our test RIO was running fine, we were deploying basic code and getting prototypes working just fine. But now the RIO is saying that there is no robot code on the RIO, even though I downloaded code onto the RIO with no problems. I made sure the RIO has the latest versions of Java and the RIO image (unless there's a new RIO image version I hadn't heard about). I searched the topic and tried the trick where you plug the joystick into slot 5 on the DS, that didn't work either. I'm really stumped about why this isn't working. Any help would be appreciated, thanks!

[AustinShalit]

It looks like your code is crashing. Does the Driver Station console have any messages in it?

[generaldgibson]

Yes, I was getting this from the driver station.

ERROR Unhandled exception: java.lang.NullPointerException at
[edu.wpi.first.wpilibj.CameraServer.addCamera(Camer aServer.java:785),
org.usfirst.frc.team3397.robot.Robot.robotInit(Rob ot.java:45),
edu.wpi.first.wpilibj.SampleRobot.startCompetition (SampleRobot.java:117),
edu.wpi.first.wpilibj.RobotBase.main(RobotBase.jav a:247)]

[AustinShalit]

It looks like you have a NPE. If you send me your code (As a zip please), I can take a look.

[generaldgibson]

Looking at it again, it seems like a lot of problems are stemming from the CameraServer. I noticed that there were some new classes for using the camera this year, but I couldn't ever find a solid guide on how to implement camera - the stuff I did use was a bit confusing.

[generaldgibson]

Code should be attached here

[AustinShalit]

Try this on line 45:

cam1 = server.startAutomaticCapture();

[generaldgibson]

That worked. I had a feeling it was the camera, thanks for the help!