Vuex reported an error

error using vuex Times
Cannot read property apply of undefined at VueComponent.mappedAction

my code:

  <div>
    
    <ul v-for="product in products">
      <li>{{product.title}} - {{product.price}}</li>
      <button @click="addCartsAction(product.id)"></button>
    </ul>
  </div>
</template>
<script>
  import {mapState, mapActions} from "vuex"
  export default {
    name: "product-list",
    computed: {
      ...mapState(["products"])
    },
    methods: {
      ...mapActions(["addCartsAction"])
    },
  }
</script>
<style scoped>
</style>


//store/index
import Vue from "vue"
import Vuex from "vuex"
Vue.use(Vuex);
var state = {
  products: [
    {"id": 1, "title": "iPad 4 Mini", "price": 500.01},
    {"id": 2, "title": "H&M T-Shirt White", "price": 10.99},
    {"id": 3, "title": "Charli XCX - Sucker CD", "price": 19.99}
  ],
  carts: [{id: 1, count: 1}]
};
var actions = {
  addCartsAction({state, commit}, id) {
    commit("addCarts", id)
  }
};
var mutations = {
  addCarts(state, id) {
    state.carts.push({
      id: id,
      count: 1
    })
  }
};
export default {
  state,
  mutations,
  actions,
}

now I mainly report an error

as long as I use the addCartsAction function.
Feb.28,2021

the store in Vue needs to be a Vuex.Store object, and you need to new one of this object when you export.

the last part of the code is changed to look like this:

export default new Vuex.Store({
  state,
  mutations,
  actions
});
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b323ac-40386.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b323ac-40386.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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