SchemaVersion Not Declared When Installing Facebook 5.0.9.0

When I try to install Facebook 5.0.9.0 from the Library 开发者_开发问答Package Manager (or the Package Manager Console), I get an error that states "The 'schemaVersion' attribute is not declared". I did not have this problem with 5.0.8.0, so just wondering if something has changed or I'm not installing this version correctly.

I had the same problem installed the latest nuget from http://nuget.org/ It is solved now