Home / Community & Support / Developer Productivity Tools Forums / ASP.NET AJAX > Beta Forum > .Net 4 issue

• Rob

  Posted on Nov 14, 2009 (permalink)

  Hi,
  
  I have your Beta 3 installed, and the .Net 4 Beta 2 from MS, in VS2010 Beta 2 running on Windows 7 64 bit.
  
  All works fine with my project set up as .Net 3.5, but when I try to convert it to .Net 4, it compiles, but then when I run it, I get a runtime javascript error complaining that sys is not defined.
  
  I have a RadMenu on my master page. Commenting out the radmenu stops the error.
  
  The error is:
  
   

  if

   

  (typeof(Sys) === 'undefined') throw new Error('ASP.NET Ajax client-side framework failed to load.');
  
  Have I not got something set up right, or is this something you are still working on?
  
  Cheers
  
  Rob

  Reply

• Vlad Vlad

  Posted on Nov 16, 2009 (permalink)

  Hi Rob,
  
  Can you get working in this scenario any of plain MS ASP.NET AJAX controls like UpdatePanel?
  
  Regards,
  Vlad
  the Telerik team

  
  Instantly find answers to your questions on the new Telerik Support Portal.
  Watch a video on how to optimize your support resource searches and check out more tips on the blogs.

  Reply


• Rob

  Posted on Feb 22, 2010 (permalink)

  Hi guys
  
  My apologies. I have been snowed under with work since I posted this, and have only just got back to looking at it again.
  
  I have updated to VS2010 RC and the newer telerik release (Not the 2010 yet - only just noticed thiat is available).
  
  At least with the VS2010 RC, salthough I got the same error, this time it told me that the culprit was the AJAX control toolkit, so nothing to do with you guys!
  
  Thought I should let you know.
  
  Cheers
  
  Rob

  Reply

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