Hi, you'll need to provide the actual error message from the browser console (DevTools). Without that, it's hard to pinpoint what’s causing the issue.

That said, this type of error is often related to cached assets or missing JavaScript dependencies. Try these quick fixes:

1️⃣ Clear your browser cache or do a hard refresh using CTRL + SHIFT + R (or CMD + SHIFT + R on Mac).

2️⃣ If that doesn’t work, check the DevTools console (F12 > Console) for specific errors and update your post with the details.

Once you share the exact error, someone here can help troubleshoot further! 

I have the same problem and they didn't give me a solution.

I have the similar issue 
"An error occurred whilel loading javascript modules, you may find more information in the devtools console" .. 
but only come-up on odoo POS.. 
Anyone solved the issue ?

I have uninstalled the 'Appointments' app as a temporary measure and this fixed the issue for us.

I'm following up with my account manager to see when they fix this issue and reinstall then. 

This issue is linked to Appointments in the web page.

I get this error after i install the appointments app.

Can I disable Appointments in the Webpage?

Edit: It's working on our Odoo.sh after the weekly update on Monday.

But i have problems on our on premise installation. I used git pull and the problem is still there after the successful pull. Anyone knows why?

Same issue, even with demo.odoo.com. So most likely an issue with the 'source' code of Odoo, not linked to any customization.

The following modules are needed by other modules but have not been defined, they may not be present in the correct asset bundle: 

Array [ "@mail/utils/common/html" ]

web.assets_frontend_minimal.min.js:42:28

    reportErrors https://demo3.odoo.com/web/assets/1/6315b4e/web.assets_frontend_minimal.min.js:42

    checkErrorProm https://demo3.odoo.com/web/assets/1/6315b4e/web.assets_frontend_minimal.min.js:17

    (Async: promise callback)

    define https://demo3.odoo.com/web/assets/1/6315b4e/web.assets_frontend_minimal.min.js:17

    <anonymous> https://demo3.odoo.com/web/assets/1/223a4bb/web.assets_frontend_lazy.min.js:1389

The following modules could not be loaded because they have unmet dependencies, this is a secondary error which is likely caused by one of the above problems: 

Array(4) [ "@mail/utils/common/format", "@appointment/js/utils", "@appointment/js/appointment_validation", "@appointment/js/appointment_form" ]

web.assets_frontend_minimal.min.js:44:29

    reportErrors https://demo3.odoo.com/web/assets/1/6315b4e/web.assets_frontend_minimal.min.js:44

    checkErrorProm https://demo3.odoo.com/web/assets/1/6315b4e/web.assets_frontend_minimal.min.js:17

    (Async: promise callback)

    define https://demo3.odoo.com/web/assets/1/6315b4e/web.assets_frontend_minimal.min.js:17

    <anonymous> https://demo3.odoo.com/web/assets/1/223a4bb/web.assets_frontend_lazy.min.js:1389

Same her!

**Updates**

It looks like it is resolved. Just try it and it works again!

Same error here v18

here is the logs from console

web.assets_frontend_minimal.min.js:44 The following modules could not be loaded because they have unmet dependencies, this is a secondary error which is likely caused by one of the above problems:

1. Array(4)
   1. 0: "@mail/utils/common/format"
   2. 1: "@appointment/js/utils"
   3. 2: "@appointment/js/appointment_validation"
   4. 3: "@appointment/js/appointment_form"
   5. length: 4
   6. [[Prototype]]: Array(0)

Same here! Both Safari and Chrome, same issue

This error has popped up on our Odoo-hosed website yesterday as well - visible to EVERYONE that visits.

Since so many people are having this issue it's definitely an Odoo problem.

Hi everyone, I'm experiencing same issue in my databases (v18.0), I get same error message also on the website home page.

I fired a ticket too and they answered me is a known issue they are working on to solve it (we hope asap :-)).

Let's patiently wait

Same error for us.

same error

Hi!
I'm running a couple of odoo 18 databases. Javascript module errors started popping up all over the place a couple of days ago. I issued a ticket on this today and learnt that there's a bunch of people already working the problem. Just thought you would like to know. 

M