I am trying to run the image classification tool but every time I run it I get this non-descriptive general error that does not help identify the issue: Error 999999 Failed to Execute TrainIsoClusterClassifier. I've tried running it through the classification wizard and through the toolbox, neither work. Does anybody have a way to get this tool to actually work? I am trying to classify some Landsat 8 imagery, I have tried with default values, and changing values with no luck..
What is the secret to get this to work?