If you have the card reader part of the camera kit and your camera uses SD cards, try doing it that way. It is the least troublesome way.
BUt if that doesn't work, then it may be a setting on your camera. Your camera may be trying to pull power from the iPad for you to download, and the iPad won't put out that much, triggering the error. If you have a power supply for your camera you can try using that. If not, maybe something in here can help you
This site contains user submitted content, comments and opinions and is for informational purposes only.
Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site.