Uncaught ReferenceError: Pinia is not defined

The "Uncaught ReferenceError: Pinia is not defined" error typically occurs when the Pinia library is not properly imported or referenced in your code. Pinia is a state management library for Vue.js applications.

To resolve this issue, make sure you have correctly installed Pinia and imported it into your project. You can install Pinia using npm or yarn:

For npm:

npm install pinia

For yarn:

yarn add pinia

After installing Pinia, you need to import it in your code before using it. In most cases, you would import it in your main application file, such as `main.js` or `app.js`. Here's an example of how you can import and use Pinia:

import { createPinia } from 'pinia';

const pinia = createPinia();

new Vue({
  // ...
  pinia,
  // ...
}).$mount('#app');

Make sure to adjust the import statement and configuration according to your project structure and needs.

If you have already installed and imported Pinia correctly, double-check that you are using the correct variable name when referencing it.