Update on Windows Phone 8 support for Rx v2.0

Last week, an update for Rx v2.0 was released, adding support for Windows Phone 8.  Unfortunately, an issue was discovered with the enhanced strong name signing used for the portable core assemblies of Rx, preventing the binaries from loading correctly on physical devices. The issue is under investigation with the Rx, CLR, and Windows Phone teams.

In order to stop the problem from impacting more developers (discovering the problem only during deployment to physical devices, typically late in a development cycle), we’ve decided to temporarily pull the Rx v2.0 for Windows Phone 8 binaries from the Visual Studio Gallery and NuGet, until a fix is available.

We apologize for the inconvenience this is causing and will post updates as we’re working towards resolving this issue. In the meantime, the Rx v2.0 for Windows Phone 7 binaries can be used for Windows Phone 8 projects. While those binaries are compatible with Windows Phone 8, they won’t contain Rx’s Task<T> support and a variety of other enhancements.

Comments (11)
  1. Update? says:

    Hi – are there any updates of when RX for Windows Phone 8 will be supported again?



  2. shaggygi says:

    I was wondering this myself.  Any updates related to this issue would be great.

  3. Jonathan Humphreys says:

    Any update? We have several apps we need to submit asap for Central Phone Region.

  4. Hi all, we're planning on fixing this within about a week.  We've run into some subtle tool chain problems that will likely mean we will release a new version 2.0.1 with a different public key from the current one.  The workaround means updating our portable library, so the new public key would show up for Windows 8 apps as well as the phone.

    We're also planning on refreshing the source code on CodePlex as well.  Look for that this week.

  5. Uffe Hansen says:

    Are there any updates, Nuget still have the November version

  6. Hamish says:

    I am having to implement my app with TPL in the mean time, the more code I'm writing on top of this the harder it is going to be now changing it back to RX when this release finally comes out.

  7. Hamish says:

    Still getting the following error – any updates of when this will be in place?

    Could not install package 'Rx-Interfaces 2.0.21114'. You are trying to install this package into a project that targets 'portable-win+net45+wp80', but the package does not contain any assembly references or content files that are compatible with that framework. For more information, contact the package author.


  8. Any update? Please release the updated version. Where is Mr. Bart De Smet? We miss him badly 🙁

  9. Rx team says:

    The new Rx is out!  Download version 2.1 via NuGet.  Read  our announcement here:


  10. Sampath says:

    This information about the correct package for Windows Phone 8.0 needs to be available at


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