Web Error after update

[James Shelton Agar]

Hi, I tried to change the global configuration for telerik update, and existing project showing up this erro

The base class includes the field 'RadScriptManager1', but its type (Telerik.Web.UI.RadScriptManager) is not compatible with the type of control (Telerik.Web.UI.RadScriptManager).

any idea to resolve such issue for any further smooth update in telerik control?

[Erjan Gavalji]

Hi James,

This error happens when the Telerik.Web.UI assembly built against .NET 3.5 is used in a project, targeting .NET 2.0 (and System.Web.Extensions 1.0). I recommend that you change the TargetFramework of your project to 3.5 and ensure that the Telerik.Web.UI assembly in the BIN folder is versioned xxxx.x.xxx.35.

Kind regards,
Erjan Gavalji
the Telerik team

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[Yuji]

Hi,

I also experience the same problem. My target framework is 3.5 and my telerik.web.ui is 2009.3.1208.35. Any other idea how can I solve this? I really need to fix this than to recreate my whole project..

[Erjan Gavalji]

Hi Yuji,

Can you check if your project has references to the System.Web.Extensions assembly? Which version of the assembly does it refer to?

Kind regards,
Erjan Gavalji
the Telerik team

Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.

[Yuji]

Yes. It has references in System.Web.Extensions. The version is 3.5.0.0 and the Runtime Version is v2.0.50727.

[Erjan Gavalji]

Hi Yuji,

Can you please, check the version of the Telerik.Web.UI assembly in the bin folder of the project as well? It should end with .35. If not, please, update the Telerik.Web.UI reference to point to the Telerik.Web.UI assembly in the Bin35 folder of the RadControls distribution.

If the assembly version ends with .35 though, that would mean that the problem is somewhere else. Please, open a formal support ticket to send us the web.config file of your project for a review if this is the case.

Kind regards,
Erjan Gavalji
the Telerik team

[Frank Tzanabetis]

I experienced the same problem - i installed the latest Telerik.Web.UI (2010.2.826.35) loaded in the GAC, but i forgot that there was an older version of Telerik.Web.UI in the bin subfolder of my project, which caused the error.  Deleting that meant that it used the GAC version and all was good.