Problem z commandblockiem

[LanoMC]

Dobry, mam problem z commandblockiem. Otóż chciałbym za pomocą komendy dać jakiś losowy efekt tylko dla osób które posiadają w ekwipunku dany przedmiot.

Wpisując:

effect @p[nbt={Inventory:[{id:"minecraft:diamond_sword"}]}] ic2:radiation

To tutaj wyrzuca mi błąd:

[22:20:27] [Server thread/ERROR] [Sponge]: Error occurred while executing command 'effect @p[nbt={Inventory:[{id:"minecraft:diamond_sword"}]}] ic2:radiation' for source TileEntityCommandBlock{tileType=SpongeTileEntityType{id=minecraft:command_block, name=command_block, TileEntityClass=class net.minecraft.tileentity.TileEntityCommandBlock}, world=WorldServer{Name=world, DimensionId=0, DimensionType=minecraft:overworld, DimensionTypeId=0}, pos=BlockPos{x=4627, y=18, z=3808}, blockMetadata=3}: net.minecraft.command.CommandException: commands.generic.selector_argument
java.lang.RuntimeException: net.minecraft.command.CommandException: commands.generic.selector_argument
        at org.spongepowered.common.command.MinecraftCommandWrapper.process(MinecraftCommandWrapper.java:113) ~[MinecraftCommandWrapper.class:1.12.2-2768-7.1.6-RC3563]
        at org.spongepowered.api.command.dispatcher.SimpleDispatcher.process(SimpleDispatcher.java:340) ~[SimpleDispatcher.class:1.12.2-2768-7.1.6-RC3563]
        at org.spongepowered.common.command.SpongeCommandManager.process(SpongeCommandManager.java:334) [SpongeCommandManager.class:1.12.2-2768-7.1.6-RC3563]
        at net.minecraft.command.ServerCommandManager.func_71556_a(SourceFile:1083) [dh.class:?]
        at net.minecraft.tileentity.CommandBlockBaseLogic.func_145755_a(SourceFile:125) [amj.class:?]
        at net.minecraft.block.BlockCommandBlock.func_193387_a(SourceFile:115) [apo.class:?]
        at net.minecraft.block.BlockCommandBlock.func_180650_b(SourceFile:93) [apo.class:?]
        at org.spongepowered.common.event.tracking.TrackingUtil.updateTickBlock(TrackingUtil.java:269) [TrackingUtil.class:1.12.2-2768-7.1.6-RC3563]
        at net.minecraft.world.WorldServer.redirect$onUpdateTick$zmd000(WorldServer.java:2305) [oo.class:?]
        at net.minecraft.world.WorldServer.func_72955_a(WorldServer.java:737) [oo.class:?]
        at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:223) [oo.class:?]
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:756) [MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:397) [nz.class:?]
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [MinecraftServer.class:?]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_191]
Caused by: net.minecraft.command.CommandException: commands.generic.selector_argument

Wersja minecrafta to 1.12.2