When Components in Vue are called in a Single File, certain elements may not be displaying as expected

I have just finished creating my components using Vue 2, Vuetify, and Vue cli - 4.5.15. I attempted to combine them into a Single Vue file but encountered issues with the components not displaying <v-icons>, <v-textfield>, and some other elements. It's puzzling why these errors are occurring. The code for Component1, Component2, and App.vue is provided below:

Furthermore, in the Control Panel, I keep receiving an error message that says

Error in render: "TypeError: Cannot read properties of undefined (reading 'rtl')"

Component 1

<template>
  <div class="post-wrap">
    <div class="post-header">
        <img src="https://www.finetoshine.com/wp-content/uploads/2020/04/Beautiful-Girl-Wallpapers-New-Photos-Images-Pictures.jpg" alt="" class="avatar">
        <div class="post-header-info">
            <a class="location-link mintext"><v-icon small>mdi-map-marker</v-icon> BVB School, Thindal</a>
            <span style="float:right;margin-right: 10px;" class="mintext">Jun 21</span>
            <br>
            &nbsp;<div style="margin-top:6px;margin-left:1px;display:inline-block;font-size:16px;">Steve Jobs</div> 
            &nbsp;·<span class="mintext"> Attended a Seminar</span>
            <p>🔥 If you're tired of using outline styles for secondary buttons, a soft solid background based on the text color can be a great alternative.</p>
        </div>
    </div>
    <div class="align-straight">
      <img src="https://www.gizbot.com/images/2020-09/realme-7_159921061900.jpg" class="multi-img">
      <img src="https://www.gizbot.com/images/2020-09/realme-7_159921061900.jpg" class="multi-img">
    </div>
    <span class="attached-link"> + 2 images</span><br>
    <div class="align-straight">
      <div class="document-wrap" style="display: inline-block;">
        <v-icon dense>mdi-file-document</v-icon> document 
      </div>
      <div class="document-wrap" style="display: inline-block;">
        + 2 
      </div>
    </div>
    <div class="align-straight like-bar">
      <span><v-icon>mdi-thumb-up</v-icon></span>
      <span style="float:right;margin-right: 20px;"><v-icon>mdi-bookmark</v-icon></span>
      </div>
  </div>
</template>

<script>
export default {
}
</script>

Component 2

<template>
<div class="newpost-wrap">
  <v-form>
    <div class="newpost-title">What's up</div>
    <v-select label="Post Type" v-model="selectedPost" :items="postTypes" outlined></v-select>
    <v-textarea v-model="newPost" :counter="280" label="New Post" hint="Share your Achievement !" required outlined></v-textarea>
    <span class="update-link" @click="showAttach=!showAttach"><v-icon color="#3a7bd5">mdi-attachment</v-icon> Attach Files</span>
    <div class="newpost-icons" v-if="showAttach==true">
      <v-file-input  small-chips  multiple dense prepend-icon="mdi-wallpaper" accept="image/*" ></v-file-input>
      <v-file-input  small-chips  multiple dense prepend-icon="mdi-file-document" accept="document/pdf, document/docx"></v-file-input>
    </div>
    <div class="update-btn">Post</div>
  </v-form>
</div>
</template>

<script>
  export default {
    data: () => ({
      showAttach: false,
      newPost: '',
      postType: null,
      selectedPost: 'Usual',
      postTypes: ['Seminar', 'Course', 'Project', 'Usual']
    })
  }
</script>

App.vue

<template>
  <v-app >
      <NewPostBar />
      <UsualPost />
  </v-app>
</template>

<script>
import NewPostBar from '/fac/faculty/src/components/NewPostBar.vue'
import UsualPost from '/fac/faculty/src/components/UsualPost.vue';

export default {
  name: 'App',
  components: {
    NewPostBar,UsualPost
  },
  data: () => ({
  })
};
</script>

Answer №1

Issue Resolved:

After encountering a similar problem, I decided to share my solution...

Initially, I started a Vue project without including a router, but later added it as a plugin...this resulted in an error

To fix this, I decided to start over with a new project that already had a router installed...now, the error has been resolved, and the project is functioning perfectly

Despite resolving the issue, I am still unclear on what caused it in the first place

A special thanks to @tony19 for providing guidance and assistance throughout this process

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