Node.js 节点窗口未卸载节点服务

我正在使用节点窗口安装和卸载节点后端windows服务。安装时，它工作得非常好。但当我试图卸载该服务时，它导致了问题。 下面是卸载windows节点服务的代码，我还附上了错误的屏幕截图

var Service = require('node-windows').Service;
var config = require('./config.json');

// pre-Installation 
/**
* npm install - g node- windows
* npm link node-windows
*/

// Create a new service object
var svc = new Service({
    name: 'GRIT Node Server',
    description: 'The new Node.js based GRIT Server',
    script: config.absoluteProgramDirectory,
    nodeOptions: [
        '--harmony'
    ]
});

// Listen for the "install" event, which indicates the
// process is available as a service.
svc.on('install', () => {
    svc.start();
});

console.log('program sucessfully uninstalled');

svc.uninstall();