The Silverlight Managed Debugging Package Isn’t Installed! What error is that?
I saw the Silverlight animation on the web and I wanted to do it too.
Microsoft Silverlight technology will not work in Visual Studio 2008, so I need to update it to SP1. It was about 850 MB. When I made it, Windows wanted to further update of SP1, which was almost 500 MB.
It took a long time but it was done.

Right now, the latest version of Silverlight 4 does not work in VS2008, I have downloaded the Silverlight tools version 3, SDK and samples from Microsofts’ downloads.

I thought, “Now it is OK for work”. But NOT.
When I open a sample solution and click “Start Debugging”, it displays the following message.

The silverlight managed debugging package isn’t installed.

I thought everything was OK, but no.
I searched through the MSDN Forums and stuff, but found nothing that helped me. Then googled, and found quite a lot.
But what is correct? I did not want to test all possible. Anyway, I tried some of them, and did not work.
I thought Silverlight addon has something to do with it. It was a very reasoned to me. Since it’s made for ordinary users, not for developers. In addition, I saw the MS Silverlight plugin will always installed the latest (version 4). But I am trying to do is 3.

Conclusion

  • MSVS2008 must be updated to SP1
  • If you have Silverlight browser plugin version 4, uninstall it
  • If you have Silverlight4 Tools, uninstall them all
  • Download and install Silverlight3_Tools
  • Download and install Silverlight3_SDK
  • Download and install Silverlight_Developer (version 3)

You do not need to change the registry or such a complex.
I hope that helps if you have similar problems.

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