[HELP] Netmessage attempt to index local 'ply' (a number value)

[MLPG]

[LUA]net.Receive("HasCharacterTrue", function(ply)
ply:SetNWBool( "GetPlayerCharacter", true )
end)[/LUA]

How come I'm getting this error?

attempt to index local 'ply' (a number value)

[c👌de_g🎷]

First argument to the net.Receive is the length of the message. Second is the player

[MLPG]

thx I'm really stupid I always forget to add len