We upgraded our environment from Web 8.1.1 to Web 8.5. We have a few GUI Extensions that uses CoreService (2015) working in one environment. We made a clean install of 8.5 and tried to re-install the GUI Extension, but after we enable it, the CMS gets broken and we need to do an IISRESET.

In Chrome Console I can only see this:

enter image description here

http://localhost/WebUI/Editors/Base/Views/Authentication/Authentication.aspx failed to load within 10 seconds Navigation.js:1

I've enabled Failed Trace Logs in IIS and the only Warning I got is this one:

enter image description here

I also tried to ping CoreService with WCF Test Client and got this:

enter image description here

The CMS shows while broken: The webpage at

http://localhost/WebUI/Editors/Base/Views/Authentication/Authentication.aspx might be temporarily down or it may have moved permanently to a new web address.

And sometimes:

The webpage at

http://localhost/WebUI/Editors/Base/Views/ProxyView/ProxyView.aspx?pagePath=~/../CME/Views/Welcome/Welcome.aspx might be temporarily down or it may have moved permanently to a new web address.

If I remove the extension from system.config it works again (after IISRESET).

I also set log level to DEBUG in system.config but nothing is logged.

Any idea?

  • It appears the UI extension is obviously breaking the CM Explorer, so you will need to at least provide more details about them. I suggest you edit your question and provide some details about the UI extension that breaks (focus on one, not two at the same time). May 9, 2018 at 8:48
  • But that's the problem...I don't have logs (nothing is written to them) and if I try to attach to the process from Visual Studio my breakpoints are not hit (maybe this is occuring before). Any different idea?
    – polonskyg
    May 9, 2018 at 12:43

1 Answer 1


Finally it was the override of Name property

The code had this

public override string Name
    get { return Name; }

Which worked in Web8! But seems now something is actually using it so it was recursively called.

using this

public override string Name
        Type itsMe = GetType();
        return string.Concat(itsMe.Namespace, ".", itsMe.Name);

Made it work.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.