98

I have the following code with a simple working Vue.js application. But the Vue.js devtools is not responding. It was working well a few days ago, now it's not working anymore what could possibly be going wrong? when I go to webstore, it says it is already added.

let data = {
  message: 'Hello World'
}

new Vue({
  el: '#application',
  data: data
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.1.6/vue.js"></script>
<div class="container">
  <div id="application">
    <input type="text" v-model="message">
    <p>The value of the input is: {{ message }}</p>
  </div>
</div>

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20 Answers 20

Reset to default
129

One alternative is to set up a local web server, as the OP already stated.
The other - which IMHO is faster and less harassing - is letting the extension have access to file URLs, which is disabled by default.

Simply go to chrome://extensions and leave the "Allow access to file URLs" box checked for Vue.js devtools.

Sources:
https://github.com/vuejs/vue-devtools#common-problems-and-how-to-fix

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2 Comments

Does not work. Need to install Beta version of Vue dev tools.
Still the solution in 2024 - Thanks!
112

I tried all of the ways presented in answers here, but none of them worked for me (neither for chrome nor for firefox).

Finally I found an answer: If you still have this problem, you can try to uninstall the current version of Vue extension and install beta version: https://v3-migration.vuejs.org/breaking-changes/introduction.html#devtools-extension

Remember to restart your browser afterwards.

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3 Comments

This is definitely the answer for Vue 3 issues
Firefox users should get the latest beta release from here: github.com/vuejs/vue-devtools/releases (until v6 has a stable release). The above link to the documentation goes to a specific version (which didn't work for me) rather than the latest one (which did work).
Make sure to refresh the page with the Vue app after installing the extension - Vue Devtools won’t detect it otherwise.
46

UPDATE: 2021 May 30,

If you are using Vue 3, old dev tools versions won't work, so just use the new beta version.

https://chrome.google.com/webstore/detail/vuejs-devtools/ljjemllljcmogpfapbkkighbhhppjdbg

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4 Comments

2021-07-05 still true, and this was the answer for me.
It's strange that the extension documentation in the web store does not clear say that it is NOT compatible with Vue 3. For Firefox, there's a beta version downloadable here: vueschool.io/lessons/using-vue-dev-tools-with-vuejs-3
Just to add a point DO NOT FORGET TO RESTART THE BROWSER AFTER INSTALLATION
I didn't need to restart my browser - using Vivaldi on macOS
17

To solve this, simply go to chrome://extensions/, scroll down to the Vue.js devtools and enable the "Allow Access to file URLs" by clicking on its checkbox.

Source: https://github.com/vuejs/vue-devtools/issues/236

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1 Comment

also mentioned in the github readme. github.com/vuejs/vue-devtools#common-problems-and-how-to-fix
11

Had the same issue and solved it by adding

Vue.config.devtools = true;

after Vue.js import script, then take look at chrome devtools. You will see a tab called Vue to inspect your vue instance.

reference: https://v2.vuejs.org/v2/api/#devtools

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1 Comment

Cannot set property 'devtools' of undefined
8

I found out the answer, I was viewing a plain html file on my computer which was making the vue.js tool not load. I loaded up my local xampp server and ran the application from the local machine server url again and now vue.js devtools is working! :)

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1 Comment

as a side note, I was having difficulty loading vue.js on my laravel application as well, and the trick was to run 'npm install' and then 'npm run watch' and now everything is working. I love working with Vue.js and Laravel! :)
4

Also you can disable with Vue config: https://v2.vuejs.org/v2/api/#devtools

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3

in the extensions folder in chrome browser, under the details tab in vue devtools extension, check the box having allow access to file URLs, this worked for me..

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3

If you're using Vue 3 and experiencing this issue, try installing the beta version of the Vue Devtools. It may help until the stable version gets the major refactor.

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1 Comment

I struggled with this for ages before realising that Vue 3 isn't supported by Vue Devtools. I also had to disable the stable version for the beta to work.
3

I had the same issue & solved it by:

  1. Installing this extension Vue Dev Tools Beta Chrome Extention
  2. Reloading the chrome browser.
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2

i had this problem, and i was expecting the vue-devtools to work by just including it. i had it console log the version

console.log("Vue Version " +Vue.version );

but this didnt work to actually load an instance of vue.

took me a few minutes, but once i actually created a vue instance, then it worked. this was the hello world example that made the devtools work :)

let data = {
  message: 'Hello World'
}

new Vue({
  el: '#application',
  data: data
})
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2

I solved the same problem. But in my case Vue.js Chrome Devtools didn't detect Vue.js because in html file was <script src="https://unpkg.com/vue"/>

I replaced it to <script src="https://unpkg.com/vue"></script> Now Chrome Devtools is detecting Vue.js perfectly.

Thanks for exapmle above.I use [email protected] and open my html by file://

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2

In the case of Firefox, install the beta version of vue-devtools, which supports Vue 3.

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1 Comment

This does not provide an answer to the question. Once you have sufficient reputation you will be able to comment on any post; instead, provide answers that don't require clarification from the asker. - From Review
1

If you have already turned on Allow Access to file URLs in chrome://extensions/ -> Vue Devtools and it still does not work, try reinstall the Vue Devtools, might work for you.

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1

check if vuejs app is not embedded in an iframe such as in a storybook app.

the hack in such a case is to work outside the parent frame working directly on the url of your iframe and the vue enter image description heredevtools should work fine.

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5 Comments

I am not able to "work outsite" because I use Google Application Script and it adds iFrame on top of my web application. Any idea what to do?
how ever vue3 is not ready. work with console.log for the moment
you mean Vue3 or Vue dev plugin?
I mean vue3 at this moment
Thank you for the hint (this is also my case). Unfortunately my app only works inside an iframe (needs an other application around it), so working outside is not an option. If you or somebody else has an idea how to activate devtools inside of an iframe, it would help me a lot.
0

I'm using Vue in electron and I have the electron main "app" separated Vue's "app".

When in the the debugger console, typing Vue was giving the error Uncaught ReferenceError: Vue is not defined

Here was my fix

window.vue = new Vue({
  components: {
    App,
    Login,
  },
  router,
  store,
  template: '<App/>',
}).$mount('#app');

The work-around was assigning window.Vue so the devtool could find it.

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0

The same problem here, and I've solved it.

If you are developing in the localhost environment and using Chrome Dev Tools then you need to give permission for the Vue.js extension to access the local files on your computer.

  • Config your Vue.js tool in Chrome extensions
  • Search for "Vue.js devtools"
  • Click on details
  • Check the "Allow access to file URLs" checkbox
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0

In my case I just had compiled for production npm run prod - which was the issue. As I ran in dev npm run dev, it started recognizing Vue.

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0

I am using Vue 3 with the latest chrome extension from the extensions market (Vue.js devtools 6.5.1)
I tried to follow the answer given by @toni19 here: https://stackoverflow.com/a/45379603/25412 but was unable because there was no "Vue" in my app. my app was created via the vue-cli create command.

I than added:

app.config.devtools = true;

right after the line that said:

const app = createApp(App)

in my main.js file.

and it worked for me.

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0

If you use Vue 2, the Vue DevTools that you used until today (30/10/24) no longer work.

Vue DevTools v7 detected your Vue 2 project.

v7 only supports Vue 3 and will not work.

The legacy version that supports both Vue 2 and Vue 3 has been moved to: https://chromewebstore.google.com/detail/vuejs-devtools/iaajmlceplecbljialhhkmedjlpdblhp

Install and enable only the legacy version of your Vue 2 app.

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