Version 4.2.0.0 of System.Net.Http.dll is included with:
| Attribute | Value | | :--- | :--- | | | 4.6.24705.01 (BuildLab) or 4.6.x (Corresponds to .NET Version) | | Assembly Version | 4.2.0.0 | | Corresponding .NET Release | .NET Framework 4.6.2, 4.7, 4.8 | | Corresponding NuGet Package | System.Net.Http (v4.3.0 - 4.3.4) | download system.net.http.dll version 4.2.0.0
The app is looking for 4.2.0.0, but the GAC provides 4.0.0.0. The Fix: You can force the application to use the specific DLL included in the project folder. Version 4
The correct token is b03f5f7f11d50a3a . If you have a different token (e.g., from Mono), you must recompile your app or replace the DLL with Microsoft’s official version. download system.net.http.dll version 4.2.0.0