Unable to locate module or its associated type declarations for index.vue files

I made a change in my vite.config.ts to allow recognition of index.vue files as entry points.

import { fileURLToPath, URL } from 'node:url'

import vue from '@vitejs/plugin-vue'
import { defineConfig } from 'vite'

export default defineConfig({
  plugins: [
    vue(),
  ],
  resolve: {
    alias: {
      '@': fileURLToPath(new URL('./src', import.meta.url))
    },
    extensions: ['.js', '.ts', '.vue', '.json'] // new line added
  },
  server: {
    port: 3000
  }
})

This configuration allows me to do the following:

import MyComponent from '@/components/MyComponent' // automatically imports index.vue

The structure of the MyComponent folder is:

MyComponent
|
+---index.vue
|
+---Subcomponent1.vue
|
+---Subcomponent2.vue

While it works and automatically imports index.vue, there is an issue with its proper resolution. An error occurs:

Cannot find module '../components/MyComponent' or its corresponding type declarations.ts-plugin(2307)

Because of this error, I am unable to navigate to index.vue when attempting to view the definition.

Despite the error, the component is displayed correctly. For a working example, you can check it out here.

Answer №1

In certain environments or specific tools (IDEs), an issue may arise. When attempting to achieve a certain outcome, you might encounter unreliable and poorly documented behavior. This includes resolving a folder to the index file and omitting the .vue extension. Naming a component index.vue can prevent the component from correctly inferring its name based on the file name during compilation, so it's best to avoid this practice.

An easy solution is to import a component as

@/components/MyComponent/MyComponent.vue
. If a folder needs to expose multiple components, you may need to re-export a component in index.ts, importing it as
@/components/MyComponent/index</code for compatibility reasons.</p>
<p>A more reliable method of importing from the <code>@/components/MyComponent
folder is to create a
components/MyComponent/package.json
file that maps its contents using fields like main and exports, similar to how third-party libraries like Primevue handle it:

{
  "main": "./MyComponent.vue",
  "module": "./MyComponent.vue"
}

This method relies on explicit tool support and the correct implementation of Node module resolution.

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