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Looking at your parameters, you are asking a tool to perform deformations on a single image, by passing it parameters like -num 1. However, looking at the docs for this process we can see that:

-num <number_of_samples> Number of positive samples to generate.

So actually this is what goes wrong. You are telling your algorithm to only make a single positive, with deformations, but that means you only have to have the original one. Try making -num 1000 and it should work.