NoSuchElementException: key not found

Hi, I was working with a simple task (running locally). Just reading a file (35 mb) with about 200 features and making a random forest with 5 trees with 5 depth.  While saving the file with: predictions.select("VisitNumber", "probability")    .write.format("json") // tried different formats    

Re: NoSuchElementException: key not found

Any suggestions any one? Using version 1.5.1. Regards Ankush Khanna On Nov 10, 2015, at 11:37 AM, Ankush Khanna <ankushkha...@icloud.com> wrote: Hi, I was working with a simple task (running locally). Just reading a file (35 mb) with about 200 features and making a random forest with 5