swift - VisualRecognitionV3 - NSCocoaErrorDomain Code=3840 -


after migrating swift 3.1, visualrecognitionv3 seems return error when searching similar images:

error domain=nscocoaerrordomain code=3840 "invalid value around character 0." userinfo={nsdebugdescription=invalid value around character 0.}

any thoughts? couldn't find similar anywhere in regards .findsimilarimages.


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