Hi, Im trying to get resources from my spawn with this script:

        var spawn = Game.getObjectById('1142bfa3ca07ddd');
        if(creep.harvest(spawn) == ERR_NOT_IN_RANGE) {
            creep.moveTo(spawn, {visualizePathStyle: {stroke: '#FFAA00'}});
        }

my screep just stands still

what did i miss ?