U4-1586 - MNTP vs uComponents error

Created by Mads Jørgensen 29 Jan 2013, 11:08:43 Updated by Claus Jensen 14 Apr 2016, 10:35:03

Hey, getting this weird error. It's happening all of a sudden, and it sort of happened before, just the errormessage being MNTP: XPath error!. That sort of dissapeared by itself again. That turned out to be while our.umbraco.org had issues the other day. Made me think of som sort of call-home situation?

Today it turned out with the ucomponents error

If you please notice, it's the native mntp installed that gives the ucomponents error :-S

3 Attachments


Sebastiaan Janssen 29 Jan 2013, 11:49:58

Sorry, I set this to duplicate, but it turns out this is a different issue.

Lee Kelleher 29 Jan 2013, 11:53:12

@Mads - can you please confirm which version of Umbraco and uComponents you are using?

Mads Jørgensen 29 Jan 2013, 12:02:16

Umbraco 4.11.1 ucomponents v. 5.3.0 (latest)

Lee Kelleher 29 Jan 2013, 12:02:25

I've looked at the source for MNTP in both Umbraco core and uComponents.

The error message "{{uComponents: XPath Error!}}" should only appear when using the uComponents version. The native Umbraco core MNTP has the error message "{{umbraco.editorControls: MNTP: XPath Error!}}".

So I'm finding it confusing that the native version would be displaying the uComponents error message.

Following the logic from the source-code, the only reason that error message should appear is when the "XPath filter" contains an invalid XPath expression. (Which itself is referenced in another issue U4-1585)

Lee Kelleher 29 Jan 2013, 12:03:48

@Mads - my super-quick-fix advice would be to delete the {{uComponents.Legacy.dll}} from your /bin folder. This would rule out any dependency on the legacy version of MNTP.

Mads Jørgensen 29 Jan 2013, 12:05:41

Just a thought, could it be some sort of error in the umbraco.config?

Mads Jørgensen 29 Jan 2013, 12:08:34

heh, just gave another error, the same as i've seen before :-S

Lee Kelleher 29 Jan 2013, 12:15:07

@Mads - Okay, so that rules uComponents out, as the correct error message is being displayed. (Still find it strange that it was being displayed - will investigate further on that).

You could try refreshing the XML cache ({{umbraco.config}}), see if that makes a difference.

Otherwise, try re-saving the MNTP's prevalue-editor options?

Mads Jørgensen 29 Jan 2013, 12:18:10

Now i've tried deleting the ClientDependency files, republishing entire site, re-saving the MNTP AND touched webconf, still no fix!

Mads Jørgensen 29 Jan 2013, 12:33:43

It's probably some cookie stuff, that held me into the issue, until further notice it might be solved??? After i recycled the app pool it worked, so still som unstability here somewhere!

Priority: Normal

Type: Bug

State: Closed


Difficulty: Normal


Backwards Compatible: True

Fix Submitted:

Affected versions:

Due in version:


Story Points: