do you know what? i'm doing that alredy i have GUI Handler,and i'm opening chest right,and and and.....i have evrething,what i need to have for it to work.......but it doesnt work!
A mod tried to open a gui on the server without being a NetworkMod <- that what Forge saying when i'm opening GUI,but i have that in main code @NetworkMod(clientSideRequired = true, serverSideRequired = true)