[SmiT]

You can't create native functions like that - read the pawn-language documentation to see how native functions are created or see How to create a plugin Tutorial. You can comment the native part so it will appear in your native list - right side of pawno:

pawn Код:

#include <a_samp>

/*
native Repair(vehicleid);
*/

stock Repair(vehicleid)
{
    RepairVehicle(vehicleid);
}