Apologies, I had tried to reply to your last post on the other thread but it seems like it never actually posted. My response was:
I am not sure why you are getting that error message. It may be difficult for me to be able to assist on this one if you are not running Envelope on a Cloudera cluster, or if you are making modifications to the Envelope code, because it won't be practical for me to replicate the error.
Are you intending to use Envelope on a Cloudera cluster? If so then you might want to start from there now rather than trying to run Envelope on Windows with your own Spark and Kafka versions.