"Warning in Vue: It seems like the $attrs object is set to read-only. Another warning in Vue: The

As someone who is relatively new to Vuejs, I have been encountering the following warnings whenever I press a key:

[Vue warn]: $attrs is readonly.

found in

---> <RouterLink>
       <HeaderComponent> at src\components\Header_Component.vue
         <App> at src\App.vue
           <Root>

and

[Vue warn]: $listeners is readonly.

found in

---> <RouterLink>
       <HeaderComponent> at src\components\Header_Component.vue
         <App> at src\App.vue
           <Root>

Although these warnings do not appear to impact functionality in any way. I haven't used $attrs or $listeners in my code, so I'm not sure where these warnings are originating from.

Below is the content of my Header_Component.vue file:

<template>
    (...)
</template>

<script lang="ts">
import Vue from 'vue'

export default Vue.extend({
    (...)
})
</script>

<style lang="css" scoped>
(...)
</style>

Your assistance with this issue would be greatly appreciated. Thank you!

Answer №1

It seems that I am here to provide a quick solution to a common issue related to importing Vue multiple times in your project.

The error typically occurs when you import Vue both in your main app and within specific component files. To fix this, simply remove the import Vue from 'vue' line from your Header_Component.vue file. You should then adjust the way you declare the component as shown below:

<script lang="ts">
//import Vue from 'vue' <-- Commented out the import statement

export default {  // <-- Removed Vue.extend()
    data() {
        return{
            logoTrue: <Object> {
                'main': true,
                'project': false,
                'blog': false,
                'aboutme': false,
                'resume': false
            },
            main: <boolean>true,
            header: <any>"",
            image: <any>"",
            h1: <any>"",
            h2: <any>"",
            nav: <any>"",
            logos: <any>"",
            break: <any>"",
        }
    }
    ...more code...
}
</script>

This resource provides more information on single file components.

Answer №2

Removing Vue.extend may not be the only solution to this issue. It could also be caused by Vue being imported from multiple sources.

Alternatively, the problem might arise from webpack incorrectly treating Vue as an external dependency. To fix this, check your webpack.config.js or webpack.renderer.config.js file and remove Vue from the externals section to resolve the issue.

For more details, refer to this link.

Answer №3

Editing Header_Component.vue to eliminate the 'import Vue from 'vue'' statement.

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