[maij]

any time i have this problem , it has to do with forwarding;

how i see the stuff, is the variables that you define in forward are diffrent then the one on public:
for example:

pawn Код:

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

NOTE THAT THIS IS WRONG!, if i would compile this code, it will errror with the same error you got;

make sure the variables are completely the same;

for example i did above it would be:

pawn Код:

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

so, check if this is right in your script/includes