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windows-phone-7visual-studio-2012async-awaitasync-ctp

Targeting WP7 async powered projects in Visual Studio 2012

Is it possible to use async stuff in Windows Phone 8.0 SDK (Visual Studio 2012) and still targeting Windows Phone 7.1?

I installed Windows Phone 8.0 SDK and opened my WP7.1 project with references to AsyncCTP nuget package. The following compilation error occurs:

Cannot find all types required by the 'async' modifier. Are you targeting the wrong framework version, or missing a reference to an assembly?

I do not want to drop support of WP7.1, so upgrade to WP8 is not an option.

Solution

  • It is possible using the latest version of the async CTP. You can find it on NuGet at Microsoft.Bcl.Async.

    More information on the BCL Team blog: http://blogs.msdn.com/b/bclteam/archive/2012/10/22/using-async-await-without-net-framework-4-5.aspx

    Note: The installation of this NuGet package seems a bit random. I had to try twice to make it work.