IllegalArgumentException The bucketName parameter must be specified. com.amazonaws.services.s3.AmazonS3Client.rejectNull

Question

Running a Clojure jar on AWS-EMR cluster using (hfs-textline) and getting:

IllegalArgumentException The bucketName parameter must be specified. com.amazonaws.services.s3.AmazonS3Client.rejectNull`.

Answer 1

In my case, it really is about bucketname. I mistyped s3:///mkay4242(3 slashes) instead of s3://mkay4242.

Answer 2

after many different tries the solution in this case was that 'AWS_ACCESS_KEY' and 'AWS_SECRET_KEY' values where wrong.