: error 017: undefined symbol "SetPlayerTeamFromClass"

stock SetPlayerTeamFromClass
{
    code_here
    return 1;
}

SetPlayerTeamFromClass(playerid, classid)
{
    if (classid == 0)
    {
        gTeam[playerid] = TEAM_GROVE;
    }
    else
    {
        gTeam[playerid] = TEAM_BALLA;
    }
}

public OnPlayerRequestClass(playerid, classid)
{
    SetPlayerTeamFromClass(playerid, classid);
    return 1;
}

// This is a comment
// uncomment the line below if you want to write a filterscript
//#define FILTERSCRIPT

#include <a_samp>

#define TEAM_GROVE 1
#define TEAM_BALLA 2
#define TEAM_GROVE_COLOR 0x00FF00AA // Bright Green (in RGBA format)
#define TEAM_BALLA_COLOR 0xFF00FFAA // Bright Purple
new gTeam[MAX_PLAYERS];

#if defined FILTERSCRIPT

public OnFilterScriptInit()
{
	print("\n--------------------------------------");
	print(" Blank Filterscript by your name here");
	print("--------------------------------------\n");
	return 1;
}

public OnFilterScriptExit()
{
	return 1;
}

#else

main()
{
	print("\n----------------------------------");
	print(" Blank Gamemode by your name here");
	print("----------------------------------\n");
}

#endif

public OnGameModeInit()
{
	// Don't use these lines if it's a filterscript
	SetGameModeText("San Andreas Deathmatch");
	AddPlayerClass(0, 1958.3783, 1343.1572, 15.3746, 269.1425, 0, 0, 0, 0, 0, 0);
	AddPlayerClass(102, 1974.4895,-1157.0608,20.9505,95.6222, 30, 1000, 29, 1000, 27, 1000);
	return 1;
}

public OnGameModeExit()
{
	return 1;
}

SetPlayerTeamFromClass(playerid, classid)
{
    if (classid == 0)
    {
        gTeam[playerid] = TEAM_GROVE;
    }
    else
    {
        gTeam[playerid] = TEAM_BALLA;
    }
}

public OnPlayerRequestClass(playerid, classid)
{
    SetPlayerTeamFromClass(playerid, classid);
    return 1;
}

	SetPlayerPos(playerid, 1958.3783, 1343.1572, 15.3746);
	SetPlayerCameraPos(playerid, 1958.3783, 1343.1572, 15.3746);
	SetPlayerCameraLookAt(playerid, 1958.3783, 1343.1572, 15.3746);
	return 1;
}

public OnPlayerConnect(playerid)
{
	return 1;
}

public OnPlayerDisconnect(playerid, reason)
{
	return 1;
}

public OnPlayerSpawn(playerid)
{
	return 1;
}

public OnPlayerDeath(playerid, killerid, reason)
{
	return 1;
}

public OnVehicleSpawn(vehicleid)
{
	return 1;
}

public OnVehicleDeath(vehicleid, killerid)
{
	return 1;
}

public OnPlayerText(playerid, text[])
{
	return 1;
}

public OnPlayerCommandText(playerid, cmdtext[])
{
	if (strcmp("/mycommand", cmdtext, true, 10) == 0)
	{
		// Do something here
		return 1;
	}
	return 0;
}

public OnPlayerEnterVehicle(playerid, vehicleid, ispassenger)
{
	return 1;
}

public OnPlayerExitVehicle(playerid, vehicleid)
{
	return 1;
}

public OnPlayerStateChange(playerid, newstate, oldstate)
{
	return 1;
}

public OnPlayerEnterCheckpoint(playerid)
{
	return 1;
}

public OnPlayerLeaveCheckpoint(playerid)
{
	return 1;
}

public OnPlayerEnterRaceCheckpoint(playerid)
{
	return 1;
}

public OnPlayerLeaveRaceCheckpoint(playerid)
{
	return 1;
}

public OnRconCommand(cmd[])
{
	return 1;
}

public OnPlayerRequestSpawn(playerid)
{
	return 1;
}

public OnObjectMoved(objectid)
{
	return 1;
}

public OnPlayerObjectMoved(playerid, objectid)
{
	return 1;
}

public OnPlayerPickUpPickup(playerid, pickupid)
{
	return 1;
}

public OnVehicleMod(playerid, vehicleid, componentid)
{
	return 1;
}

public OnVehiclePaintjob(playerid, vehicleid, paintjobid)
{
	return 1;
}

public OnVehicleRespray(playerid, vehicleid, color1, color2)
{
	return 1;
}

public OnPlayerSelectedMenuRow(playerid, row)
{
	return 1;
}

public OnPlayerExitedMenu(playerid)
{
	return 1;
}

public OnPlayerInteriorChange(playerid, newinteriorid, oldinteriorid)
{
	return 1;
}

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
	return 1;
}

public OnRconLoginAttempt(ip[], password[], success)
{
	return 1;
}

public OnPlayerUpdate(playerid)
{
	return 1;
}

public OnPlayerStreamIn(playerid, forplayerid)
{
	return 1;
}

public OnPlayerStreamOut(playerid, forplayerid)
{
	return 1;
}

public OnVehicleStreamIn(vehicleid, forplayerid)
{
	return 1;
}

public OnVehicleStreamOut(vehicleid, forplayerid)
{
	return 1;
}

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
	return 1;
}

public OnPlayerClickPlayer(playerid, clickedplayerid, source)
{
	return 1;
}