How to navigator back to the tabbar page in onsen ui with VUE?

[forchen]

I test this demo https://github.com/OnsenUI/vue-onsenui-kitchensink

When i navigator to page A, then to page B, the to page C, then I wan’t navigator to the root tabbar page, but it got error :

“Uncaught (in promise) ons-navigator’s page stack is empty.”

this code from store.js

navigator: {
  strict: true,
  namespaced: true,
  state: {
    stack: [],
    options: {}
  },
  mutations: {
    push(state, page) {
      state.stack.push(page);
    },
    pop(state) {
      if (state.stack.length > 1) {
        state.stack.pop();
      }
    },
    replace(state, page) {
      state.stack.pop();
      state.stack.push(page);
    },
    reset(state, page) {
      state.stack = [page || state.stack[0]];
    },
    options(state, newOptions = {}) {
      state.options = newOptions;
    }
  }
},

When i call the reset function, it got that error. Thank you very much!