Error 'Uncaught (in promise)' in router guard (boot/router-auth.js)

[Mx]

export default ({ router }) => {
  router.beforeEach((to, from, next) => {
    const isTokenValid = false // temp

    if (!isTokenValid && to.path !== '/login') {
      next('/login')  // GOT ERROR IN THIS LINE
    } else {
      next()
    }
  })
}

How can I fix it?

[ouaR]

read this.
https://github.com/vuejs/vue-router/issues/2881#issuecomment-520554378