Can't import the named export from non EcmaScript module (only default export is available) #675

MycroftHolmes1989 · 2021-09-14T11:44:46Z

Steps to reproduce the behavior

Use Vue-cli to create a Vue 3 app with Typescript.
Run yarn add pinia@next.
Edit the main.ts:

import { createApp } from "vue";
import App from "./App.vue";
import { createPinia } from "pinia";

const app = createApp(App);
app.use(createPinia());
app.mount("#app");

Run yarn serve.

Expected behavior

The compilation goes without an error

Actual behavior

Throws error:

ERROR  Failed to compile with 18 errors                                                                                                           

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'computed' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'del' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'effectScope' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'getCurrentInstance' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'inject' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'isReactive' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'isRef' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'isVue2' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'markRaw' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'onUnmounted' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'reactive' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'ref' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'set' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'toRaw' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'toRef' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'toRefs' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'unref' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'watch' from non EcmaScript module (only default export is available)

Additional Information:

"dependencies": {
   "core-js": "^3.6.5",
   "pinia": "^2.0.0-rc.9",
   "primeflex": "^3.0.1",
   "primeicons": "^4.1.0",
   "primevue": "^3.7.1",
   "vue": "^3.0.0",
   "vue-router": "^4.0.0-0"
 },
 "devDependencies": {
   "@typescript-eslint/eslint-plugin": "^4.18.0",
   "@typescript-eslint/parser": "^4.18.0",
   "@vue/cli-plugin-babel": "~4.5.0",
   "@vue/cli-plugin-eslint": "~4.5.0",
   "@vue/cli-plugin-router": "~4.5.0",
   "@vue/cli-plugin-typescript": "~4.5.0",
   "@vue/cli-service": "~4.5.0",
   "@vue/compiler-sfc": "^3.0.0",
   "@vue/eslint-config-prettier": "^6.0.0",
   "@vue/eslint-config-typescript": "^7.0.0",
   "eslint": "^6.7.2",
   "eslint-plugin-prettier": "^3.3.1",
   "eslint-plugin-vue": "^7.0.0",
   "lint-staged": "^9.5.0",
   "node-sass": "^4.12.0",
   "prettier": "^2.2.1",
   "sass-loader": "^8.0.2",
   "typescript": "~4.1.5"
 },

The text was updated successfully, but these errors were encountered:

Liwoj · 2021-09-14T12:03:52Z

Same problem here. Using "typescript": "~4.3.5".
Downgrading back to 2.0.0-rc.8 fixes the issue...

Liwoj · 2021-09-14T13:57:51Z

Seems related and also the workaround mentioned in the discussion works.

But it's strange as all the issues I found (here, here) describe this problem as "unable to do named import from CJS into ESM module". But VueDemi provides ESM build and after checking Webpack 4 docs (as Vue CLI is still on WP4), it has also correct settings in package.json ("module" field pointing to .mjs file).

So I still don't understand why it is treated as "non EcmaScript module"

posva · 2021-09-14T14:29:54Z

Can someone provide a boiled down repro with only Vue and pinia (no router, or other unnecessary steps)

jhony-v · 2021-09-14T22:03:42Z

I had the same problem but I solved editing my vue.config.js file with the following webpack rule:

// vue.config.js
module.exports = {
  configureWebpack: {
    module: {
      rules: [
        {
          test: /\.mjs$/,
          include: /node_modules/,
          type: "javascript/auto"
        }
      ] 
    }
  }
}

With this configuration it worked.

predragnikolic · 2021-09-24T15:11:01Z

Can someone provide a boiled down repro with only Vue and pinia (no router, or other unnecessary steps)

@posva I created a vue-cli project with a repro. Hope it helps.

https://github.com/predragnikolic/pinia-bug-repro

And when I try to import pinia:
https://github.com/predragnikolic/pinia-bug-repro/commit/d9810039d701d30d58f11688f3081fe14545db4a

I get errors when running yarn serve:

yarn serve
yarn run v1.22.11
warning ../package.json: No license field
$ vue-cli-service serve
 INFO  Starting development server...
98% after emitting CopyPlugin

 ERROR  Failed to compile with 18 errors                              5:09:52 PM

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'computed' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'del' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'effectScope' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'getCurrentInstance' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'inject' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'isReactive' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'isRef' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'isVue2' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'markRaw' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'onUnmounted' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'reactive' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'ref' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'set' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'toRaw' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'toRef' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'toRefs' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'unref' from non EcmaScript module (only default export is available)

 error  in ./node_modules/pinia/dist/pinia.mjs

Can't import the named export 'watch' from non EcmaScript module (only default export is available)

No issues found.

posva · 2021-09-27T22:17:40Z

@predragnikolic that's a lot of projects 😓

@MycroftHolmes1989 can you create a boiled down reproduction please?

timpulver · 2021-09-28T10:20:34Z

Here is the chained Webpack config if someone else needs it:

vue.config.js:

/**
 * @type {import('@vue/cli-service').ProjectOptions}
 */
module.exports = {
  chainWebpack: (config) => {
    config.module
      .rule("mjs")
      .test(/\.mjs$/)
      .type("javascript/auto")
      .include.add(/node_modules/)
      .end();
  },
};

posva · 2021-09-29T12:36:50Z

I reproduced the issue on a simple project. This should be fixable by changing the extensions of the generated files. I still need to test it out a bit more.

tobiasdiez · 2021-10-15T19:37:54Z

I get this error now when trying to upgrade from @pinia/nuxt v 0.0.4 to version 0.0.6, see JabRef/JabRefOnline#551. The reason might be 438b16d ?

4Kazelot · 2021-10-18T09:55:53Z

I had the same problem but I solved editing my vue.config.js file with the following webpack rule:

// vue.config.js
module.exports = {
  configureWebpack: {
    module: {
      rules: [
        {
          test: /\.mjs$/,
          include: /node_modules/,
          type: "javascript/auto"
        }
      ] 
    }
  }
}

With this configuration it worked.

For NuxtJS:

export default {
  build: {
    extend(config) {
      config.module.rules.push({
        test: /\.mjs$/,
        include: /node_modules/,
        type: 'javascript/auto',
      })
    },
  },
}

Kooklen · 2022-01-24T01:28:01Z

I had the same problem but I solved editing my vue.config.js file with the following webpack rule:

// vue.config.js
module.exports = {
  configureWebpack: {
    module: {
      rules: [
        {
          test: /\.mjs$/,
          include: /node_modules/,
          type: "javascript/auto"
        }
      ] 
    }
  }
}

With this configuration it worked.

It works

qrtp · 2022-02-18T01:43:08Z

I had the same problem but I solved editing my vue.config.js file with the following webpack rule:

// vue.config.js
module.exports = {
  configureWebpack: {
    module: {
      rules: [
        {
          test: /\.mjs$/,
          include: /node_modules/,
          type: "javascript/auto"
        }
      ] 
    }
  }
}

With this configuration it worked.

For NuxtJS:

export default {
  build: {
    extend(config) {
      config.module.rules.push({
        test: /\.mjs$/,
        include: /node_modules/,
        type: 'javascript/auto',
      })
    },
  },
}

@4Kazelot For the NuxtJS what file does this config go in?

AzimovAzimDev · 2022-06-05T12:28:44Z

[[[> > > I had the same problem but I solved editing my vue.config.js file with the following webpack rule:

// vue.config.js
module.exports = {
  configureWebpack: {
    module: {
      rules: [
        {
          test: /\.mjs$/,
          include: /node_modules/,
          type: "javascript/auto"
        }
      ] 
    }
  }
}

With this configuration it worked.

For NuxtJS:

export default {
  build: {
    extend(config) {
      config.module.rules.push({
        test: /\.mjs$/,
        include: /node_modules/,
        type: 'javascript/auto',
      })
    },
  },
}

@4Kazelot For the NuxtJS what file does this config go in?

https://nuxtjs.org/docs/features/configuration/#extend-webpack-config](https://nuxtjs.org/docs/features/configuration/#extend-webpack-config)](https://nuxtjs.org/docs/features/configuration/#extend-webpack-config)](https://nuxtjs.org/docs/features/configuration/#extend-webpack-config)

taidaid · 2022-07-01T09:37:43Z

Hello, we are trying to use Pinia alongside Vuex in a Nuxt 2 project in order to smooth our eventual migration to Nuxt 3. However, even after adding

    extend(config) {
      config.module.rules.push({
        test: /\.mjs$/,
        include: /node_modules/,
        type: 'javascript/auto',
      })
    },

to our build config, we are still seeing the Can't import the named export 'isVue2' from non EcmaScript module (only default export is available). The error comes from our ./.nuxt/dist.plugin.209980bd.mjs file which seems to be the @pinia/nuxt plugin setup.

Here is some of our package.json

// dependencies
"nuxt": "2.15.8",
"vue": "2.6.14",
"@nuxtjs/composition-api": "^0.23.2" ,
"@pinia/nuxt": "^0.1.9",
"pinia": "^2.0.14

// devDependencies
"@nuxt/typescript-build": "2.1.0"

We tried some experiments such as deleting ths .cjs file from vue-demi, but it seems that no matter what we do, the file is not reading the .mjs file correctly.

andreisucman · 2022-10-15T09:07:29Z

If nothing worked you can try importing differently.

Instead of

import {a, b} from "c";

try

import * as q from "c";

and then

const {a, b} = q;

yudhishthir-siterecon · 2024-01-14T15:22:11Z

If you are using CRACO for react app, add the following webpack configuration to your craco.config.js:

  module.exports = {
    webpack: {
      configure: (webpackConfig, { env, paths }) => {
        // Add a rule to handle .mjs files
        webpackConfig.module.rules.push({
          test: /\.mjs$/,
          include: /node_modules/,
          type: 'javascript/auto',
        });
  
        return webpackConfig;
      },
    },
  };

posva added the need repro This issue couldn't be reproduced label Sep 14, 2021

posva added bug Something isn't working has workaround The issue contains a temporary solution to get around the problem and removed need repro This issue couldn't be reproduced labels Sep 29, 2021

posva mentioned this issue Sep 30, 2021

build: refactor cjs + mjs #694

Merged

posva closed this as completed in #694 Sep 30, 2021

posva mentioned this issue Oct 14, 2021

Possible to run nuxt3 + pinia #719

Closed

tobiasdiez mentioned this issue Oct 15, 2021

Bump @pinia/nuxt from 0.0.4 to 0.0.6 JabRef/JabRefOnline#551

Closed

This was referenced Oct 27, 2021

Can't build with v2.0.0-rc.15 #749

Closed

Pinia v2 doesn't work with vue@2 & @vue/composition-api@1.2.4 #750

Closed

philibe mentioned this issue Feb 8, 2022

Pinia Error in Vue 2 #1039

Closed

leopons mentioned this issue Mar 13, 2022

TypeError: Object(...) is not a function at createPinia #1147

Closed

taidaid mentioned this issue Jul 11, 2022

Can't import the named export 'isVue2' from non EcmaScript module vueuse/vue-demi#171

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Can't import the named export from non EcmaScript module (only default export is available) #675

Can't import the named export from non EcmaScript module (only default export is available) #675

MycroftHolmes1989 commented Sep 14, 2021 •

edited by posva

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Can't import the named export from non EcmaScript module (only default export is available) #675

Can't import the named export from non EcmaScript module (only default export is available) #675

Comments

MycroftHolmes1989 commented Sep 14, 2021 • edited by posva Loading

Steps to reproduce the behavior

Expected behavior

Actual behavior

Additional Information:

Liwoj commented Sep 14, 2021

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posva commented Sep 14, 2021

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predragnikolic commented Sep 24, 2021

posva commented Sep 27, 2021

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4Kazelot commented Oct 18, 2021

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