how to fix the following matlab error

Error in images.internal.isFigureAvailable (line 9) if feature('showFigureWindows')

Error in imshow (line 207) if ~images.internal.isFigureAvailable()

Error in imshowpair (line 124) h = imshow(result,parentArgList{:});

[Adam]

How would we know if you don't show us any code? Is that the whole error message? Surely there is a line pointing to the code where you actually call imshowpair?

[Image Analyst]

Look at what arguments you're sending in to imshowpair(). One or more of them are probably messed up, like null or not an image or axes or something.