Error running example of 'deno task dev' #18667

rafaelbdb · 2023-04-12T13:06:56Z

My config (MX Linux 21.3):

$ lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description:    Debian GNU/Linux 11 (bullseye)
Release:        11
Codename:       bullseye

$ deno --version
deno 1.32.3 (release, x86_64-unknown-linux-gnu)
v8 11.2.214.9
typescript 5.0.3

$ node --version
v18.15.0

$ npm --version
9.5.0

Trying to follow the tutorial here:
https://www.youtube.com/watch?v=MDPauM8fZDE
https://github.com/denoland/examples/tree/main/with-vue

$ deno run -A npm:create-vite-extra
✔ Project name: … myProject
✔ Select a template: › deno-vue
✔ Select a variant: › TypeScript

Scaffolding project in /myProject...

Done. Now run:

  cd myProject
  deno task dev

$ cd myProject
$ deno task dev

I get the error:

Task dev deno run -A --node-modules-dir npm:vite
failed to load config from /myProject/vite.config.mts
error when starting dev server:
TypeError: Cannot read properties of null (reading 'on')
    at ensureServiceIsRunning (file:///myProject/node_modules/.deno/[email protected]/node_modules/esbuild/lib/main.js:2137:15)
    at build (file:///myProject/node_modules/.deno/[email protected]/node_modules/esbuild/lib/main.js:2011:26)
    at bundleConfigFile (file:///myProject/node_modules/.deno/[email protected]/node_modules/vite/dist/node/chunks/dep-79892de8.js:63875:26)
    at loadConfigFromFile (file:///myProject/node_modules/.deno/[email protected]/node_modules/vite/dist/node/chunks/dep-79892de8.js:63851:31)
    at resolveConfig (file:///myProject/node_modules/.deno/[email protected]/node_modules/vite/dist/node/chunks/dep-79892de8.js:63466:34)
    at createServer (file:///myProject/node_modules/.deno/[email protected]/node_modules/vite/dist/node/chunks/dep-79892de8.js:62752:26)
    at CAC.<anonymous> (file:///myProject/node_modules/.deno/[email protected]/node_modules/vite/dist/node/cli.js:734:30)

My 'deno.json' file:

{
  "tasks": {
    "dev": "deno run -A --node-modules-dir npm:vite",
    "build": "deno run -A --node-modules-dir npm:vite build",
    "preview": "deno run -A --node-modules-dir npm:vite preview",
    "serve": "deno run --allow-net --allow-read https://deno.land/[email protected]/http/file_server.ts dist/"
  }
}

My 'vite.config.mts' file:

import { defineConfig } from 'npm:vite@^4.0.4'
import vue from 'npm:@vitejs/plugin-vue@^4.0.0'

import 'npm:vue@^3.2.45'

// https://vitejs.dev/config/
export default defineConfig({
  plugins: [vue()],
})

My 'src/main.ts' file

import { createApp } from 'vue'
import './style.css'
import App from './App.vue'

createApp(App).mount('#app')

I didn't change anything in those 3 files. They were generated by Deno.

I suppose there is a version issue somewhere, but I've already searched Google (and even tried ChatGPT) for hours, and can't figure out what is causing the issue.

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

bartlomieju · 2023-05-11T12:46:02Z

Can you repeat the same problem with latest Deno release?

Anan7Codes · 2023-05-30T09:01:30Z

I'm getting a similar error when I run deno task dev. I was following this video.

➜  deno-react-go-server -> deno task dev    
Task dev deno run -A --node-modules-dir npm:vite
error: Uncaught Error: EPERM: operation not permitted, readdir
    at __node_internal_captureLargerStackTrace (ext:deno_node/internal/errors.ts:89:11)
    at __node_internal_uvException (ext:deno_node/internal/errors.ts:182:12)
    at denoErrorToNodeError (ext:deno_node/internal/errors.ts:1831:16)
    at ext:deno_node/_fs/_fs_readdir.ts:35:22
    at eventLoopTick (ext:core/01_core.js:182:11)

bartlomieju · 2023-05-30T11:25:31Z

@Anan7Codes your issue seems to be a problem with filesystem permission on your machine, so it's not strictly related to Deno. Make sure that the user you are running with has read and write access to the whole project directory.

Anan7Codes · 2023-05-30T11:36:03Z

@Anan7Codes your issue seems to be a problem with filesystem permission on your machine, so it's not strictly related to Deno. Make sure that the user you are running with has read and write access to the whole project directory.

Cool I'll try it once again though when I ran the command the first time it worked. I couldn't see the webpage on default url localhost:5173. I closed it by pressing ctrl + c and then when I ran deno task dev again, I started receiving this error.

bartlomieju · 2023-05-30T11:41:12Z

Try removing the created node_modules directory and let me know if the problem persists. Which Deno version are you using?

rafaelbdb · 2023-05-30T13:32:58Z

I had this problem using MX Linux. I "solved" it by using Kubuntu.
A bit drastic, but worked. Go figure...

Anan7Codes · 2023-05-31T11:45:08Z

Try removing the created node_modules directory and let me know if the problem persists. Which Deno version are you using?

Tried deleting node_modules. Getting the same error.
I'm using v1.34.0.

nounder · 2023-06-17T18:44:41Z

I get the same error when deno dev with project created by npm:create-vite-extra as per official docs.

deno --version
deno 1.34.3 (release, aarch64-apple-darwin)
v8 11.5.150.2
typescript 5.0.4

RossLin007 · 2023-06-22T06:46:56Z

I get the same error .
but, it ok when i use deno 1.34.1

deno --version
deno 1.34.3 (release, x86_64-apple-darwin)
v8 11.5.150.2
typescript 5.0.4

markchagers · 2024-10-24T11:24:21Z

Edit: when I do npm install in the dinos directory the command deno task dev works, but I was under the impression that deno replaces the normal npm stuff. The tutorial also fails to mention that the npm install step is still necessary.

I get the same issue with the example in:
https://docs.deno.com/runtime/tutorials/how_to_with_npm/vue/

When I follow the example I get this output:

mark@MacBook-Pro dev % deno run -A npm:create-vite
✔ Project name: … dinos
✔ Select a framework: › Vue
✔ Select a variant: › TypeScript

Scaffolding project in /Users/mark/dev/dinos...

Done. Now run:

  cd dinos
  npm install
  npm run dev


mark@MacBook-Pro dev % cd dinos 
mark@MacBook-Pro dinos % deno task dev
Task dev vite
vite: command not found

this deno version (installed with brew):

mark@MacBook-Pro dinos % deno --version
deno 2.0.2 (stable, release, aarch64-apple-darwin)
v8 12.9.202.13-rusty
typescript 5.6.2

bartlomieju · 2024-10-24T11:34:43Z

You need to run deno install (or npm install) before running deno task dev - vite: command not found means that there's no node_modules directory with proper entries in node_modules/.bin/ folder.

markchagers · 2024-10-24T11:38:16Z

You need to run deno install (or npm install) before running deno task dev - vite: command not found means that there's no node_modules directory with proper entries in node_modules/.bin/ folder.

I already found this out and edited my comment. I was under the impression that deno made npm install obsolete (after all you also don't need to do npm run dev anymore). apparently that doesn't apply when using other frameworks through deno.

bartlomieju · 2024-10-24T11:43:37Z

I already found this out and edited my comment. I was under the impression that deno made npm install obsolete (after all you also don't need to do npm run dev anymore). apparently that doesn't apply when using other frameworks through deno.

That's correct most frameworks operate on assumption that there will be node_modules directory and while we tried to make some of them work without it it's sort of slow grind.

aapoalas added bug Something isn't working correctly needs investigation requires further investigation before determining if it is an issue or not node compat labels Apr 15, 2023

bartlomieju added the dx label Oct 28, 2024

gopoto linked a pull request Mar 21, 2025 that will close this issue

fix(node/child_process): ensure stdio pipes exist when spawn fails #28573

Open

3 tasks

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Error running example of 'deno task dev' #18667

Error running example of 'deno task dev' #18667

rafaelbdb commented Apr 12, 2023 •

edited

Loading

bartlomieju commented May 11, 2023

Anan7Codes commented May 30, 2023

bartlomieju commented May 30, 2023

Anan7Codes commented May 30, 2023

bartlomieju commented May 30, 2023

rafaelbdb commented May 30, 2023

Anan7Codes commented May 31, 2023

nounder commented Jun 17, 2023 •

edited

Loading

RossLin007 commented Jun 22, 2023

markchagers commented Oct 24, 2024 •

edited

Loading

bartlomieju commented Oct 24, 2024

markchagers commented Oct 24, 2024 •

edited

Loading

bartlomieju commented Oct 24, 2024

Error running example of 'deno task dev' #18667

Error running example of 'deno task dev' #18667

Comments

rafaelbdb commented Apr 12, 2023 • edited Loading

bartlomieju commented May 11, 2023

Anan7Codes commented May 30, 2023

bartlomieju commented May 30, 2023

Anan7Codes commented May 30, 2023

bartlomieju commented May 30, 2023

rafaelbdb commented May 30, 2023

Anan7Codes commented May 31, 2023

nounder commented Jun 17, 2023 • edited Loading

RossLin007 commented Jun 22, 2023

markchagers commented Oct 24, 2024 • edited Loading

bartlomieju commented Oct 24, 2024

markchagers commented Oct 24, 2024 • edited Loading

bartlomieju commented Oct 24, 2024

rafaelbdb commented Apr 12, 2023 •

edited

Loading

nounder commented Jun 17, 2023 •

edited

Loading

markchagers commented Oct 24, 2024 •

edited

Loading

markchagers commented Oct 24, 2024 •

edited

Loading