Workaround for vidinput error: There is no enumerated value named ''

I have the Matlab Image Acquisition Toolbox which I am trying to use to communicate with a camera. When I use imaqtool to access the toolbox GUI, the camera appears and I have to select a format. There is only one choice. When I click on that, I get the error "Unable to create a VIDOINPU object for the selected format. The error was error using videoinput (line 393). There is no enumerated value named ''. Any suggestions for troubleshooting this error so I can communicate with the camera?

[KAE]

When I turned the camera off and on and reconnected, after many tries I was able to connect without this error. Therefore there may be an issue with the camera I am using but any background info you might know about this error would be helpful.