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kotlinlang

```Caused by: kotlin.NotImplementedError: An operation is not implemented: Obtaining serializer from KClass is not available on native due to the lack of reflection. Use .serializer() directly on serializable class.
```
Ok, but how are you supposed to do that? Is it a bug in ktor?

Nope. It’s a lack of support in kotlinx.serialization.

You can’t extract the serializer with reflection on native. You could try to pass `MyClass.serializer()` explicitly.

Yep. <https://api.ktor.io/1.1.3/io.ktor.client.features.json.serializer/-kotlinx-serializer/set-mapper.html>