May 3, 2018 · I have a problem by updating my server from 1.8 to 1.12 I always get the error from console and there are noting wrong for solve this problem.

Dec 15, 2015 · 1) This problem can be caused by a plugin trying to spawn a non-spawnable item stack. IE a plugin tries to spawn Material.wall_sign or Material.melon_stem.

Mar 14, 2013 · [MC-11834] "[SEVERE] Item entity # has no item?" is spammed in the console and items appear as stone for invalid IDs or on initial drop.

Dec 1, 2014 · I believe it's caused by hoppers that use custom value spigot transfer. It started happening after latest recompile, please let me know if it's something on my ...

Minecraft expects it to be null when no item data is stored but this method is required to return an ItemStack for rendering (else the client will crash).

Mar 27, 2020 · Short description is, the thrown potion entity data is not being recognized. Steps to Reproduce. simple code: command /test: trigger: make ...

Nov 3, 2017 · This is happening because you need to use the World#dropItem method, which is needed because all data about the itemstack must exist when the ...

May 25, 2020 · If you put that NBT in the Potion tag of thrown potion entity, that should do it. execute as @e[type=potion,nbt={Potion:{whatever the tag ...