Esquader

Ok what java version you use and did you try to re-extract a new workspace from the mdk if you did try and it doesn't work download the mdk again maybe its corrupted

oh so it's just like sorting a "basic" java list??

I was talking to diesieben07 to explain more but I understood what you said Luis_ST about sorting the item class

can you give me an example

Hello I just want to ask how to sort an itemgroup for my mod thanks if you help.

I just switched to IntelliJ and it worked, maybe my eclipse was bugged, anyways thank you all for your help

Still don't work I changed the compiler version to Java 8, deleted and reinstalled it but still stuck with the same bug.

Then how do I change it in eclipse

I already have Java 8

Hello,I'm new to the modding world and I was ready to run my examplemod but then this happened, I have no idea on how to fix it, please help me and thanks if you do.