Error while using HttpClient’s AutomaticDecompression in Portable Libraries

Adding automatic decompression support to an HttpClient is quite easy:

var handler = new HttpClientHandler();
if (handler.SupportsAutomaticDecompression)
{
    handler.AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip;
}
var httpClient = new HttpClient(handler);

This works even in Portable Libraries. However, if you try to call this from a different project, you might encounter the strange exception below:

Method not found: void System.Net.Http.HttpClientHandler.set_AutomaticDecompression(System.Net.DecompressionMethods).

This doesn’t give too much information – for some reason, the setter of the AutomaticDecompression property was not found, which prevents the code from JIT’ing. Apparently, the solution for that is quite simple – you need to make sure that the project that calls the Portable Library also refers to the Microsoft.Net.Http Nuget package.