Hi, I have a trouble in using prerender-spa-plugin in my vue project with vue2.0 + vue-router.

This is my webpack.prod.conf.js:
new PrerenderSPAPlugin({
staticDir: path.join(__dirname, '../dist'),
routes: ['/home/homePage'],
})

This is my /router/index.js:
export default new Router({
mode: 'history',
linkActiveClass: 'is-active',
routes: [
{ path: '/', redirect: '/home/layout' },
...Home
]
})

This is my router under layout:
export default {
name: 'home.layout',
path: '/home/layout',
component: r => require.ensure([], () => r(require('src/modules/home/layout/page/index.vue')), 'HomeLayout'),
redirect: '/home/homePage',
children: [
homePage
]
};

My homePage is under layout.When I build:
building for production...[prerender-spa-plugin] Unable to prerender all routes!
(node:6184) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): Error: Navigation Timeout Exceeded: 30000ms exceeded

Can you help me?Thanks