ERROR: Native images generated against multiple versions of assembly System.Net.Http.Primitives

Question

I got this error in my WP8.1 app,

Application_UnhandledException ERROR: Native images generated against multiple versions of assembly System.Net.Http.Primitives. at CoolEditor.Class.DropNetRt.DropNetClient.LoadClient() at CoolEditor.Class.DropNetRt.DropNetClient..ctor(String apiKey, String appSecret) at CoolEditor.MainPage.d__6e.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.AsyncMethodBuilderCore.b__3(Object state)

And I have only one solution under the project.

Answer 1

Are you using a third party assembly that has a reference against a different version of System.Net.Http.Primities than the reference in your own project? Are any third parties being used that are not intended for use on the Windows Phone architecture?