It's essential to ensure that this property remains responsive, whether through the data option or by initializing the property for class-based components

This code snippet contains the template and path information.

<template>
    <div class="">
        <c1 :text="message1"></c1>
        <c1 :text="message2"></c1>
    </div>
</template>

<script>
import c1 from '../components/c1.vue'

export default {
    components: {c1},
        data () {
            return {
                message1: 'hello world1',
                message2: 'hello world2',
            }
        }
}

path : ./pages/index.vue
---------------------------------------------------

<template>
    <div>
        <h1>c1 component</h1>
            <p>{{text}}</p>
    </div>
</template>

<script>
export default {
    props: ['text']
}
</script>

path : ./components/c1.vue

An error has occurred in the output of this code.

 ERROR  [Vue warn]: Property or method "message1" is not defined on the instance but referenced during render. Make sure that this property is reactive, either in the data option, or for class-based components, by initializing the property. See: https://v2.vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.

found in

---> <Pages/index.vue> at pages/index.vue
       <Nuxt>
         <.nuxt/layouts/default.vue> at .nuxt/layouts/default.vue
           <Root>

 ERROR  [Vue warn]: Property or method "message2" is not defined on the instance but referenced during render. Make sure that this property is reactive, either in the data option, or for class-based components, by initializing the property. See: https://v2.vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.

found in

---> <Pages/index.vue> at pages/index.vue
       <Nuxt>
         <.nuxt/layouts/default.vue> at .nuxt/layouts/default.vue
           <Root>

I am learning from a tutorial. I'm confused why 'message1' and 'message2' are undefined. Could this be due to a syntax mistake? The version of nuxt being used is 2.6.3. Could it be related to the version? Please advise me on how to resolve this issue.

Answer №1

Verify that the script tag in your index.vue file is properly closed

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