I’m trying to do a project using Ktor and Mustache (amongst other things). However, when I tried templating with Mustache, following this tutorial, I get the following error: 500: kotlinx.serialization.SerializationException: Serializer for class ‘MustacheContent’ is not found. Mark the class as @Serializable or provide the serializer explicitly. Of course, I can’t change the MustacheContent class… Read More Mustache: Serializer for class 'MustacheContent' is not found