Silverlight 4: Resolving Microsoft.Silverlight.CSharp.targets was not found?
I've been upgrading some Silverlight 3 apps to Silverlight 4 in Visual Studio 2010. My Silverlight 3 apps open fine in Visual Studio, but SL4 apps don't, with the following error:
C:\Path\To\MyProject.csproj : error : Unable to read the project file 'XNTVOD.AdminClient.csproj'.
C:\Path\To\MyProject.csproj(593,3): The imported project "C:\Program Files (x86)\MSBuild\Microsoft\Silverlight\v4.0\Microsoft.Silverlight.CSharp.targets" was not found. Confirm that the path in the <Import> declaration is correct, and that the file exists on disk.
I had a problem with older VS Silverlight components and recently uninstalled most of the SL components, and right now in Add/Remove programs I have:
- Microsoft Silverlight
- Microsoft Silverlight 3 SDK
- Microsoft Silverlight 4 Toolkit April 2010
The <import> declaration looks like this for the SL4 project:
<Import Project="$(MSBuildExtensionsPath32)\Microsoft\Silverlight\$(SilverlightVersion)\Microsoft.Silverlight.CSharp.targets" />
That folder, C:\Program Files (x86)\MSBuild\Microsoft\Silverlight\v4.0 only has two files in it:
Microsoft.Ria.Client.targets
Microsoft.Ria.Client.VisualStudio.targets
What Silverlight development component am I missing in particular? I see a bunch of different options, from Silverlight 4 SDK Beta to VS Tools for Silverlight 4 and a bunch of others. I don't want to install stuff that will get me right back to the situation I had before this one with outdated components.
Looks like this is the missing piece...
Silverlight 4 Tools for Visual Studio 2010
The file that's missing ships in the Silverlight 4 SDK. You can either install just the Silverlight 4 SDK, or re-install the entire Silverlight 4 Tools for VS2010 package (which will re-install the developer runtime, SDK, a hotfix for VS2010, the Silverlight 4 Tools package, and WCF RIA Services).
You may get this with Silverlight version 4 projects when trying to open in version 5 if version 4 bits are not on that machine. What has worked for me (after several hours of trying everything) is to edit the csproj file and change the silverlight target version
<TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
From 4 to 5
This worked well for me...also had to install Silverlight 4 Developer runtime
Afer many tries, what worked for me was: 1. go to add or remove programms 2. remove all silverlight versions installed (4, 5 or even if version is not specified remove it too!) 3. install Silverlight 4 SDK 4. install Silverlight 5 for developers Finally opened the project in VS 2010 SP1