JMeter - Could not find the TestPlan class

Question

I have a simple flume setup with a HTTP souce and a sink that writes the POST request payload to a file. (This complete setup is on a Linux machine).

After that my t

Answer 1

I had the same problem today with JMeter 2.13. When I saved it using this entry from the menu I received a jmx file that was accepted in non-GUI mode: