I found my own problem. I should have read the error more carefully.
Code:
INFO: Loading file /home/lvuser/project.grip
VIDEOIO ERROR: V4L2: Pixel format of incoming image is unsupported by OpenCV
VIDEOIO ERROR: V4L: setting property #16 is not supported
VIDIOC_STREAMON: Bad file descriptor
VIDIOC_STREAMON: Bad file descriptor
Jan 23, 2016 12:57:05 AM edu.wpi.grip.core.Source initializeSafely
WARNING: Failed to initialize CameraSource
java.io.IOException: A problem occurred trying to start the frame grabber for Webcam 0
The webcam I am using's pixel format is unsupported by OpenCV