Not found telerik assambly

[Justin Miller]

Hi,
I have been working on one project since last 2 months and we are using telerik and visual studio. Today morning when I made some changes to one of the files of my project and tried to rebuild it, it suddenly gave me tons of errors. They are all related to telerik. It doesn't recognise any telerik controls. I tried adding Telerik.Web.UI.dll file by doing right click on the project-->add references. But got no luck. Check the screenshot I attached for the errors I am getting.
Please help me out. I have to fix this immediately.

Thanks,

[Georgi Tunev]

Hello Justin,

What exactly did you change and what happens if you revert these changes?


Best wishes,
Georgi Tunev
the Telerik team

[Justin Miller]

Hello Georgi,

We upgraded our telerik version and got bunch of errors. Somehow we are able to resolve these errors but now we are getting errors regarding skins. It seems like the newer version doesn't have older skins which we used on the website. Please help us in fixing this issue. We have to fix this issue ASAP.
Let me give you information about our old and new version of telerik.web.ui.dll
OLD: 2008.03.1314.35
NEW:2010.1.309.35

Thanks,
Justin

[Georgi Tunev]

Hi Justin,

With Q1.2009 we introduced a brand new CSS naming conventions, and now all RadControls conform with it, and this is the reason for breaking custom skins. For more info on this, you may check the following two threads:

http://blogs.telerik.com/tervelpeykov/posts/09-02-23/radcontrols_for_asp_net_ajax_receive_a_major_face-lift.aspx

http://blogs.telerik.com/tervelpeykov/posts/09-03-20/using_pre-q1_2009_skins_with_q1_2009.aspx

We already developed an online tool that converts pre-Q1.2009 skins to the new rendering that you can use to convert your skin:

http://converter.telerik.com/skinconverter/

If you experience trouble converting your skin, send us a small running project with the broken skin, and we will convert it for you.


Regards,
Georgi Tunev
the Telerik team