The errors most probably happen because you use a Web Application project and I sent you a Web Site page. You can just copy the content to a new page to have it running in your project.
As per the ext.js library - I could not find a CSS file in the package. Am I missing something?
FYI, I added references to the ext-base.js and ext-all.js script files and I did not have the problem either.
Looking forward to your reply,
the Telerik team
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