1 minute ago, boyx said:

I am exactly in the same class and dont find this

Idk if its cause your using an outdated version, but you should update - we can only provide support for what we know about.

 

With capabilities I believe you need

- A class that handles the data and everything (it doesn't have anything related to the forge capability classes in it) that will probably implement INBTSerializable<NBTBase> (see https://github.com/Cadiboo/WIPTechAlpha/blob/9c2e50bc87a8c26cc5c19bc73f0f3c4987ff48f9/src/main/java/cadiboo/wiptech/capability/attachments/AttachmentList.java)

- A class that has your @CapabilityInject and serialisation in it (see https://github.com/Cadiboo/WIPTechAlpha/blob/9c2e50bc87a8c26cc5c19bc73f0f3c4987ff48f9/src/main/java/cadiboo/wiptech/capability/attachments/CapabilityAttachmentList.java#L15-L35)

- To register your capability in preInit (see https://github.com/Cadiboo/WIPTechAlpha/blob/9c2e50bc87a8c26cc5c19bc73f0f3c4987ff48f9/src/main/java/cadiboo/wiptech/WIPTech.java#L99)

5 minutes ago, Cadiboo said:

Idk if its cause your using an outdated version, but you should update - we can only provide support for what we know about.

What should i update? The forge version or the mapping or what?

9 minutes ago, boyx said:

What should i update? The forge version or the mapping or what?

Your modding for 1.10.2? switch to 1.12.2

Change "version" in your build.gradle file to "1.12.2-14.23.4.2705"

2 minutes ago, Cadiboo said:

Your modding for 1.10.2? switch to 1.12.2

I no longer need to. I found a fix for that problem but it still crashes because of the Capability. I dont know what i did wrong. I made a class where i used @CapabilityInject in and i put that in my preInit. The game only crashes when i get the Item in my inventory.