angular6 Cannot read property 'split' of undefined

我遇到這個問題一般都是路由配置有誤，我的導航是這樣

this.router.navigate(["home/ecoloMenu/ecologyEvaluation/ecologicalFactors/mountain/greenRate"]);

到ecologyEvaluation這一層的時候，寫錯了配置

 

const routes: Routes = [
  {
    path: "",
    children: [

      {
        path: "ecologicalFactors",
        loadChildren:
          "app/ecology-evaluation/ecological-factors/ecological-factors.module#EcologicalFactorsModule"
      },

    ]
  }
];

其實沒有componet作爲主，把外邊path和children去掉就好

const routes: Routes = [
      {
        path: "ecologicalFactors",
        loadChildren:
          "app/ecology-evaluation/ecological-factors/ecological-factors.module#EcologicalFactorsModule"
      },

    ]