Problems with Telerik.Web.UI

[Benigno Benavides Siller]

Hi!

I'm using visual studio 2008, framework 3.5 and the new version of prometheus

I have a RadGrid but I get the next error:


Could not load file or assembly 'Telerik.Web.UI Version=2007.3.1218.35,
culture=neutral PublicKeyToken=121FAE78165BA3D4 or one of its dependencies'

I have the same error with all the controls of this version.

Any suggestion?

Thanks.

[Konstantin Petkov]

Hi Benigno,

Unfortunately we are not sure what might be causing such a problem, but you can find this thread helpful. Let us know if you need further assistance.

Best wishes,
Konstantin Petkov
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

[Michael Josiah]

The problem seems to be with the GAC. You can run into problems when the following two scenarios are observed.

1) The Prometheus installation has not installed the dll in the GAC and VS2008(what I am using) seems to look there for the Telerik controls. So even if you have it in your toolbox you need to make sure it is also in the GAC. Quite annoying as I would expect it to be there on installation. Could the fact that I had the futures version installed prior to that be the problem? The futures installed fine.

2)When it has been installed then you have to watch out for multiple versions of the dll in the GAC. For prometheus is you have two versions of Telerik.Web.Ui then you will get a conflict error whenever you try to run an app with the control.

Hope this helps and Telerik please look into this as it caused me hours of grief trying to figure it all out.

P.S. There seems to be a problem with the prometheus grid. Whenever you try to add columns via the design screen the control adds some sort of unknown telerik tag. Something like <Telerik.web.ui.column> 

[Konstantin Petkov]

Hi Michael,

Do you mean the Telerik.Web.UI or Designer.dll? The latter should be added into GAC on installation only and this is by design. In general, there is no need to add Telerik.Web.UI.dll into GAC explicitly.

The devs are working on the problem with the Prometheus designers in VS 2008. We will do our best to address all those for the Service Pack of Q3 2007.

As to the conflict, you may get that if you reference two different versions of a DLL within the same project/application. Otherwise, there should be no problem adding different dll versions into the GAC.

Please, excuse us for the inconvenience this is causing.

Greetings,
Konstantin Petkov
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

[John]

I am having the same problem  System.IO.FileNotFoundException; Could not load dile or assembly 'Telerik.Web.UI, Version=2007.3.1314.35, Culture=neutral, PublicKeyToken=121fae78165ba3d4' or one of its dependencies.  The system cannot find the file specified.  File name: 'Telerik.Web.UI, Version=2007.3.1314.35, Culture=neutral, PublicKeyToken=121fae78165ba3d4' at Telerik.Web.Design.RadGridDesigner.GetDesignTimeHtml(DesignerRegionCollection regions) at System.Web.UI.Design.ControlDesigner.GetViewRendering(ControlDesigner designer)

In the GAC there are 2 versions of the Telerik.Web.Design, version 2007.3.1314.35 and 207.3.1314.20.  I tried rerunning the exe install and repairing the install but I get the same error.  We are Prometheus right now and need this to work on 2008 before we can come to a decision on wether to purchase or not.

[Sebastian]

Hello John,

I believe that following the instructions from the knowledge base article linked below will help you address the design-time issue you are currently facing:

http://www.telerik.com/support/kb/article/b454K-hab-b454T-a-b454c-a.aspx

Kind regards,
Stephen
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

[a]

I have to say that I have tried pretty much everything in these forums to resolve this problem...  I have tried adding the UI.dll to the GAC, change permission on the RadControls folder etc...  Honestly this make me loose faith in this product because for $800 - $1200 I think there should be a little more help on this issue since it seems that lots of people are having issues with it...

Please provide a step by step example on how to add / remove items from the GAC?  Which items should I remove/uninstall? or install?

[Sebastian]

Hello a,

Does the instructions from the knowledge base articles linked below help? Note that adding/removing assemblies from the GAC is rather a general ASP.NET knowledge, nevertheless you can find detailed info on the matter in these resources:

http://www.telerik.com/help/radcontrols/prometheus/?installAddToGlobalAssemblyCache.html
http://www.thescarms.com/dotnet/gacutil.aspx

I hope these directions are helpful.

Best regards,
Stephen
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center