Request.Headers.Keys is ambigous

[victorhurdugaci]

The following line in a controller:

var keys= this.Context.Request.Headers.Keys;

Produces:

Error   1   Ambiguity between 'System.Collections.Generic.IDictionary<string, string[]>.Keys' and 'Microsoft.AspNet.Http.IReadableStringCollection.Keys'    c:\users\victorhu\documents\visual studio 14\Projects\WebApplication6\WebApplication6\Controllers\HomeController.cs 12  52  WebApplication6