I am sorry that you are hitting an issue; we will do everything we can to help - can you provide me with the version of the IntelliJ plugin you are using please as well as the JDK version you are using too?
Also have you restarted IntelliJ after installing the plugin?
Thanks for getting back to us so quickly - I have spoken with our dev team and this error is incorrectly causing us to exit; this is already fixed in out 11.01 release which is due out on Tuesday next week.
I am really sorry for this; it is great that you are trying out our plugin and we would love you to upgrade next week and let us know how you get on
If you have any other questions or comments in the meantime please don’t hesitate to shout - we are here to help