[Max_Coldheart]

Nah, this is the right:

pawn Код:

CMD:SkyDive(playerid, params[])
{
    if(IsPlayerAdmin(playerid))
    {
        new Float:Pos[3];
        GetPlayerPos(playerid, Pos[0], Pos[1], Pos[2]);
        SetPlayerPos(playerid, Pos[0], Pos[1], Pos[2] + 1000);
        SendClientMessage(playerid, -1, "Skydiving ...");
        return 1;
    }
}

You had error in yours.

Download zcmd.inc and on top of your script add

pawn Код:

#include <zcmd>

Download zcmd.inc and on top of your script add
[pawn