WRF Q2 2012 Demo doesn't start: UnauthorizedAccessException

[Eliyahu Goldin]

I upgraded from Q1 2012 to Q2 2012 using the Telerik Control Panel. The upgraded reported no errors. My project seems to be working fine. However, when I am trying to start the Demo application, I and getting a "Stop working" error. Prior to the update, the demo app used to work fine.

This is what I found in the machine's Event Log:

Application: WPF Demos.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.UnauthorizedAccessException
Stack:
   at System.IO.__Error.WinIOError(Int32, System.String)
   at System.IO.FileStream.Init(System.String, System.IO.FileMode, System.IO.FileAccess, Int32, Boolean, System.IO.FileShare, Int32, System.IO.FileOptions, SECURITY_ATTRIBUTES, System.String, Boolean, Boolean)
   at System.IO.FileStream..ctor(System.String, System.IO.FileMode, System.IO.FileAccess, System.IO.FileShare, Int32, System.IO.FileOptions)
   at System.IO.StreamWriter.CreateFile(System.String, Boolean)
   at System.IO.StreamWriter..ctor(System.String, Boolean, System.Text.Encoding, Int32)
   at System.IO.StreamWriter..ctor(System.String, Boolean, System.Text.Encoding)
   at System.IO.File.InternalAppendAllText(System.String, System.String, System.Text.Encoding)

[Biliana Ficheva]

Hello Eliyahu,

Sorry for the inconvenience. This happens on machines which nave turned on User Account Control.
In order to start the Demos just right click on the Demos shortcut and select the option "Run as administrator".
We will do our best to fix this problem in our next releases.

Kind regards,
Biliana Ficheva
the Telerik team

[Eliyahu Goldin]

Thanks, obviously I could've figured it out myself.

[Robert]

ah yes I had the same problem. Thank you!
Run as Admin worked for me.

[Anthony Payot]

hello

i'm desktop admin in our company , we have the same issue with WPF Demos and UAC control enabled (our users are not administrator of their workstation)

we can't wait until Q3 could you provide use a fix or hotfix please ?

Best regards

[Andrey]

Hello Anthony,

You could easily avoid the issue by giving everyone full permissions to the Demos folder under the main installation folder.

Let me know if that helps.

All the best,
Andrey
the Telerik team