Unable to resolve the issue of Duplicate keys detected with value '0'. This could potentially lead to errors during updates

Encountered a warning in Vue js stating 'Duplicate keys detected: '0'. This warning could potentially lead to an update error.

To resolve this issue, I utilized the getter and setter in the computed variable and dispatched the value to Vuex store.

Below is the HTML code snippet for displaying a sample TappingPressure input field:

<!-- Displaying Sample TappingPressure input field-->
<v-layout 
wrap row
class="text-xs-left mx-auto pt-2"
style="height:50px;" >

...some code 

<v-flex xs12 md1 sm1 class="ma-0 pa-0"
>
    <v-text-field
    class="myfont1 inputValue"
    name="pressure" 
    id="pressure" 
    required  
    v-model="tappingPressure"
    type="number"
    reverse
    style="max-width:70px;"
        >
    </v-text-field>
</v-flex>
...some code   
</v-layout>
                                                   

Computed variable code snippet:

tappingPressure:{
                get () {
                return this.$store.getters.tappingPressure
                },
                set (value) {
                this.$store.dispatch('setTappingPressure',{data:value})
                }
            },

Vuex code snippet for updating the variable:

import Vue from 'vue'
import Vuex from 'vuex'
import '@/firebase/init.js'
import  firebase from 'firebase/app'
import 'firebase/auth'


import router from "@/router.js"

Vue.use(Vuex)

export default new Vuex.Store({
  state: {
  ...some code
  
  tappingPressure:"",
  
  ...some code
  },
  
  mutations: {
   setTappingPressure(state, payload) {
      state.tappingPressure = payload.data;
    },
    
    ...some code
  },
  
  actions: {
   setTappingPressure({
      commit
    }, payload) {
      commit("setTappingPressure", payload);
    },
    ...some code
    
   },
   
   
   getters: {
   
   tappingPressure(state) {
      return state.tappingPressure;
    },
    
    }
   
});
  
  
  

Screenshot of the error can be viewed here.

Encountering the error specifically when calling a function within a Vuetify stepper. Nonetheless, the code functions appropriately and Vuex gets updated despite the flood of warning messages in the console.

If anyone has a solution or suggestion, it would be greatly appreciated. Thank you in advance.

Answer №1

Encountered a problem where two list renderings were present in the template.... In both instances, "index" was being used for key binding as illustrated below

v-for="(compo,index) in compoDataAz" :key="index" 
v-for="(compo, index) in analyteData" :key="index" 

I made changes to both by modifying them to:

v-for="(compo,index) in compoDataAz" :key="'compo'+index"
v-for="(compo, index) in analyteData" :key="'analyte'+index"

This adjustment resolved the issue. The warning occurred because I mistakenly used "index" as the key for both list renderings. Thankfully, I was able to identify and correct it. Sharing this experience in case it may be useful to someone else.

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