Hi everyone . i'm using websocket-sharp it's really great , easy to use but after Google Play Store told us that we must upload 64bit apps i tried to export APK but the compiler give me an error this time .. Assets\Scripts\NetWorkManager.cs(5,7): error CS0246: The type or namespace name 'WebSocketSharp' could not be found (are you missing a using directive or an assembly reference?) when i tried to go back to mono instead of IL2CPP it works fine . it stops after checking NDK !!!