Failed to retrieve data for a node's menu -1

Hi Pieter

What version of Umbraco 7 are you using?

When did this start to happen? Is it on a fresh install or has it been running for a while?

Have you installed some 3rd party packages etc?

Is it a local installation or is it installed on a server?

It could also be a permission issue.

Please ellaborate a bit more since that will make it easier to help you out.

/Jan

Hi Jan,

Thnx for the quick response but in some really strange way it works again..

i im using Umbraco version 7.1.1 assembly: 1.0.5211.22376. and i have no packages or something installed.

It was a local project but database is on the server.

I really dont get why it was but for now it is fixed.

thnx!

Hi Pieter

Could perhaps be some downtime on the database server perhaps?

Do you have a webhost or are you hosting yourself or what is your setup?

Glad that it's working again btw! :)

/Jan

hi jan,

our hosting is @ leaseweb.com but downtime is not possible because the website was accesible, and was working properly.

but im happy thats it works again :)!

thnx!

I am having the same problem. No idea how to make it work? Any idea?

Hi Alex and welcome to our :)

Could you provide us with some more information?

What version of Umbraco are you running? What database are you using? Do you see the issue on a local installation or is it on the server it acts up? Is it running on shared hosting or a dedicated server?

Cheers, Jan

Hello Jan.

Thanks for the quick reply. My details:

I am running

Umraco Version 7.1.1 assembly 1.0.5220.2185 with SQL Server CE installed on my local computer ( just started developing ).

I am running the generic sample it came with, started working on the HTML and layout and suddenly it stopped working.

Nothing was changed in the Umbraco itself since it worked. I also tried restarting the IIS and recompiling - nothing helped.

I looked at the firebug and saw you make an ajax call to this link:

http://localhost:39738/umbraco/backoffice/UmbracoTrees/ContentTree/GetMenu?id=-1&application=content&tree=&isDialog=false

This is the exception:

)]}',
{"Message":"An error has occurred.","ExceptionMessage":"Object reference not set to an instance of an object.","ExceptionType":"System.NullReferenceException","StackTrace":"   at Umbraco.Web.Trees.ContentTreeController.PerformGetMenuForNode(String id, FormDataCollection queryStrings)\r\n   at Umbraco.Web.Trees.ContentTreeControllerBase.GetMenuForNode(String id, FormDataCollection queryStrings)\r\n   at Umbraco.Web.Trees.TreeControllerBase.GetMenu(String id, FormDataCollection queryStrings)\r\n   at lambda_method(Closure , Object , Object[] )\r\n   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass13.<GetExecutor>b__c(Object instance, Object[] methodParameters)\r\n   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.Execute(Object instance, Object[] arguments)\r\n   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.<>c__DisplayClass5.<ExecuteAsync>b__4()\r\n   at System.Threading.Tasks.TaskHelpers.RunSynchronously[TResult](Func`1 func, CancellationToken cancellationToken)"}

Hi Alex

Ok, it might be a caching issue...

Could you try doing the following

1: In your web.config set debug to "true" 2: Open Umbraco in Chrome with the console log open (Make sure the console log is clearing the browser cache when it's open) and then refresh your browser window.

If that does not work then please try this

1: Go to the /app_data/TEMP/ClientDependency folder and delete all the files 2: Go to /config/ClientDependency.config and increment the version number (There is a version attribute on one of the elements). 3: Recycle your app pool and try again.

Hope this helps.

/Jan

Tried both things and restarted the computer. Same issue...

SOLVED IT!!

Damn. It was because of uComponents, they are not compatibale with the Umraco7 and they crushed the tree for some reason :)

Thanks for the help.

Hi Alex

Yes, uComponents is not compatible with v7 - but keep an eye out for "nuComponents", which is "New uComponents" where most property editors will be converted for Umbraco 7.

Glad you figured it out and thanks for sharing :)

/Jan

Thanks all, just had the same problem and came across this post....thought I had to rebuild!!!!!

We had uComponents on a 6 installation, we uninstalled it, and then upgraded to 7, and we have this issue when trying to access user accounts in the backoffice.

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