Why is it that the variable of the router/.js file referenced in state in the process of using vuex is always undefined?

Why is it that when using vuex, the variable under the router/ folder referenced in state is always undefined?

the directory structure is as follows:
src/router/constantRouter.js
src/store/vuex_modules/admin.js

reference code
constantRouter.js

import Home from "../views/home/index.vue"

// 
import err401 from "../views/error/err401.vue"
import err404 from "../views/error/err404.vue"
import err500 from "../views/error/err500.vue"
import login from "../views/login/index.vue"
// 
import main from "../views/home/main.vue"

// 
import uploadList from "../views/components/uploadList.vue"

//   authRule 
const crm1 = [
  {
    path: "*",
    component: err404,
    hidden: true
  },
  {
    path: "/401",
    component: err401,
    name: "401",
    hidden: true
  },
  {
    path: "/404",
    component: err404,
    name: "404",
    hidden: true
  },
  {
    path: "/500",
    component: err500,
    name: "500",
    hidden: true
  },
  {
    path: "/login",
    component: login,
    name: "",
    hidden: true
  },
  {
    path: "/",
    component: Home,
    redirect: "/readme",
    name: "",
    hidden: true
  },
  {
    path: "/readme",
    component: Home,
    redirect: "/readme/main",
    icon: "shouye",
    name: "",
    noDropdown: true,
    children: [
      {
        path: "main",
        component: main
      }
    ]
  },
  {
    path: "/components",
    redirect: "/components/uploadList",
    component: Home,
    name: "components",
    icon: "tongyong",
    children: [
      {
        path: "uploadList",
        name: "",
        component: uploadList
      }
    ]
  }
]
export default crm1
export const tname = "jerry"

admin.js

import { userInfo, login, logout } from "../../api/login"
import * as types from "../mutation-types"
import crm1, {tname} from "../../router/constantRouter"
import {
  getToken,
  setToken,
  removeToken,
  getAdminId,
  setAdminId,
  removeAdminId
} from "../../util/authUtils"
import { Message } from "element-ui"

// initial state
const state = {
  adminId: getAdminId(), // id
  userName: "admin", // 
  avatar: "https://wx.qlogo.cn/mmopen/", // 
  token: getToken(), // token
  authRules: [], // 
  routers: crm1 // 
}
console.log("debug4")
console.log(state)
console.log(state.routers)
console.log(tname)

related screenshots

Apr.09,2021

add that I created another a.js content under src/router/ that is exactly the same as constantRouter.js, except that the variable name is changed.
can be referenced successfully. Two files exist at the same time, index.js references constantRouter.js, while admin.js references a.js can have a value.
but once index.js and admin.js refer to the same file constantRouter.js or a.js, you can't display the value first.
you can come to a conclusion:

appears as router and can no longer be referenced in state

why?

=
I finally found the problem, which is caused by the initial value setting problem in my state.
question closes

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