ImportPackage help for a beginner

[pempem]

Hi, I'm using The Pack v1 (a modified odinms I believe) and I'm trying to set up a modest server for a friend and I, hence my lack of knowledge and my persistence with this.
launch_world.bat and launch_login.bat work fine, but I get the importpackage error when I launch launch_channel.bat (pictured below)

I can post the entire error if that would help. I found this thread, http://forum.ragezone.com/f428/odinms-java-8-compatibility-fixes-1055778/
But I do not follow what it is saying exactly. If I could be walked through the process, I'd really appreciate it.
Thank you so much for reading.

 

[valenciams]

JAVA8 USE load('nashorn:mozilla_compat.js');

 

[ahnlab]

You can also try to use this guide:
http://forum.ragezone.com/f427/tweaking-script-engine-java-8-a-1008662/

It will add for all of your js scripts the 'load(nashorn...)' function so you won't need to do it by yourself.

 

[sunnyboy]

or you could go back to java 7 xD