Sometimes I add a new variable to the Vue data() and get a ReferenceError (like "ReferenceError: windowHeight is not defined"), then when I check the error in the Firefox's debugger, I see that Vue in debugger is the old code not the one I have in my IDE. But when I try the exact same thing in Private Browsing I can see the code being exactly the same as my IDE.
Is this some kind of caching problem? Or is it related to my IDE which is VSCode. And how can I solve it?
I was expecting to see the same code as in my IDE, but during debug I see the old one.
I've just lost a frustrating amount of time trying to work out why npm run serve was hanging when attempting to run my vue js app. Eventually, I tracked it down to one error in a vue file I made, it took me a long time to work this out since the issue manifests itself in a way that the console window just hangs.
Is there some other way developers can get a more descriptive error list from vue js prior to attempting to run/build?
Personally, I find the most useful and essential tools to be (I use VS Code as "IDE")
Vetur: includes syntax-highlighting, snippets, linter (error checking), auto completition, etc.
Vue.js devtools (for chrome): Not sure about other browsers, but this is incredibly useful for chrome. Let's you see what's really going on with vue.js' components, the store, etc (screenshot from the chrome store page).
Hope this helps!
Whenever I click on a textarea the following message pops up:
What could possibly trigger this?
Thanks!
Note: I'm using JQM 1.4.5 and the textarea is normal, nothing was configured.
I was having the same issue on one of my projects, with the same traceback as yours. It was strange, as there was no bundle.js in my project, or even being loaded. I found it was an issue with one of my extensions, so disabling extensions and clearing cache should fix your issue.
Are you using chrome browser?
If so, sign out of your chrome browser. That should fix it.
It might be that you have some installed chrome extensions whose javascript codes are conflicting with your project
I started using vue dev-tools in my application but it is not visible when in developer mode in Chrome. I tried various solutions found on the dev-tools github page and in other places on the web, but no luck. Below are the things i have done/tried to get it to display.
Enabled allow access to file URL’s option in the chrome extension
Added Vue.config.debug = true; Vue.config.devtools = true; just before new Vue({})
Added non-minified versions of VueJS file
Also I am using Chrome latest version: 55.0.2883.87.
I do get the following message when I click on the chrome extension
Except the panel is not actually showing.
Does anyone have a solution to this? Thanks.
I could not get the Vue icon to be active on the menu bar, however I was able to get the Vue tab to show in the Chrome developer tools. Try the following:
Close the Chrome developer tools window
Hard refresh the browser
Re-open the developer tools window and look for the Vue tab
The icon in the toolbar might still indicate that it cannot detect Vue, but the tab should be visible in the Chrome developer tools.
I had this same issue, I was using minified vue from cdn "vue.min.js" .Then I removed that and used non-minified vue. Then I reloaded browser and reopened console and the vue tab was there.
For me, I was running a local HTML file. By default, Chrome blocks extensions from working on local files.
3-dot menu -> More Tools -> Extensions
Find the Vue extension, click details and change turn on the setting "Allow access to file URLs:
Screenshot
close & reopen chrome
Also found today that if you have an ad blocker installed that this also stops Vue Devtools from running properly.
Closing the file tab and reopening it worked for me.
Restart many times Google Chrome
Don't use min file
And add before new vue instantiation:
Vue.config.devtools = true;
chrome developer tools should be close before enabling the vue dev tools extention...
(if chrome devtools is open, close chrome development tools and re-open)
Just do a "hard reload" for a few times. On windows: SHIFT + F5.
On Mac: CMD + SHIFT + R.
Use the devtools beta for Vue 3. And always check if your Vue app mounted correctly.
Step 1: add vue.js devtools as an extension from here
step 2: After adding vue.js devtools, close your browser.
Step 3: Open your browser and open your html page.
Step 4: click right side of your mouse and select inspect and try to find Vue.
Note: If you didn't added the CDN of vue.js, then add these line to your html file.
<script src="https://cdn.jsdelivr.net/npm/vue#2"></script>
You should enable Allow access to file URLs from Vue extension and then hard refresh your page with Shift + F5
It worked for me
(For Firefox Browser) If the add-ons 'Vue.js devtools' is added in browser..Just click on Inspect Element (or press F12) and there is a tab of Vue along with Inspector, Console, Network etc. Click on that Vue tab and enjoy debugging.
Just do hard reload and close development console then reopen it.
Hard Reload, help me.
Open devtools -> right click on reload button -> Hard Reload
Please make sure you don't use the production CDN. The only way that make it work for me is to use the VueJS dev version.
Development : vue.js
This happens to me periodically, pretty annoying because there seems to be no cause.
Go to Chrome browser extensions
Remove the Vue DevTools extension
Add it back again
Hard refresh your page
Chrome - Version 71.0.3578.98
MacOS Mojave 10.14
VueJS 2.5.21
close the chrome app
re-run development server
re-open chrome app
open localhost
press F12 (to open development tools)
In case you are using vue3, uninstall Vue devtool extension and install the beta version.
you can install it for chrome from the below link:
https://chrome.google.com/webstore/detail/vuejs-devtools/ljjemllljcmogpfapbkkighbhhppjdbg
In #Daryn answer he mention that he has problems witch vue icon - here is solution to this part of running vue extension on chrome which in the same time also solve OP problem for me:
During plugin installation for short moment in upper right chrome corner the VUE ICON appears with message (screenshot is not my):
And CRITICAL is to click right button on that icon (without close that message!) and choose "PIN" (it pin to extensions icons bar) - if you not do it - then you will never see that icon again (which is mistake). After that shut down and reopen chrome. And now in you page with vue, this icon should have green colors (you can click on it) and click right button on some page element (or on screen center) and choose "Inspect" to see
maybe you can go to settings then go to preferences then look for persistence then enable local overrides, sorry my english is not good
Don't know if this helps but make sure to refer to app.js in your view file you are rendering in your current path. Laravel example from view file: <script src="{{ asset('js/app.js') }}" defer></script>
This way the vue extension starded working for me.
You should run
npm run watch
or
npm run dev
otherwise you can not see Vue Toolbar
Restarting Chrome worked for me
Maybe obvious but the Vue panel is not available when in incognito mode. In this case, the Vue icon is not visible either.
Enter chrome://extensions in the address bar and click on Details for Vue.js devtools. Scroll down to "Allow in Incognito" and switch to On.
don't forget about
npm run dev
(or something like in your project)
And then try advisions from first answers