oxidus5886

Hi guys, new to the forum here. I usually play single player on legends but a mate would like to play on a server. I have the server all set up correctly but when I move the world to the server I get the following in the console: [10:54:30] [Server thread/ERROR] [FML]: Unidentified block: IC2:tinOre, id 227 [10:54:30] [Server thread/ERROR] [FML]: Unidentified block: IC2:copperOre, id 228 [10:54:30] [Server thread/ERROR] [FML]: Unidentified item: IC2:copperOre, id 228 [10:54:30] [Server thread/ERROR] [FML]: Unidentified item: IC2:tinOre, id 227 [10:54:30] [Server thread/WARN] [FML]: Forge Mod Loader detected missing blocks/items. There are 4 missing blocks and items in this save. If you continue the missing blocks/items will get removed. A world backup will be automatically created in your saves directory. Missing Blocks/Items: IC2:tinOre IC2:copperOre IC2:copperOre IC2:tinOre I dont understand how I can get no problems when playing SP but flagging errors when copying the world across. Can someone help?