4
votes

I've been developing for and running Silverlight 4 for about a week. A week ago I installed the Silverlight 4 design time components to develop and debug silverlight for VS 2010 - I posted some of these apps and they were used by users running SL4. Today, I went to a website that told me to upgrade my SL (I think it was the MS expression site) - so I did that and all the sudden I get this error when running SL 4 apps within VS 2010.

The silverlight developer runtime is not installed please install a matching version

Installing the latest version of the Silverlight SDK does not correct this. Basically I am stuck and unable to run Silverlight apps from VS2010.

Are versioning problems like this a common theme in SilverLight? The only thing I can think of is that there is a minor version difference between the versions used on the the MS Expression web site and the version (SL4) I installed from MS site a few days ago? However re-installing the latest version of SL4 does not correct this.

Any help?

1

1 Answers

6
votes

The developer runtime is a different download than the normal "end user" runtime.

Again quoting from Tim Heur's Blog, you need to look for the link under "getting the updates" that points to the developer runtime. This will allow you to debug etc.