I've got a data class with an inner LocalDate that...

# serialization

[crummy]

I've got a data class with an inner LocalDate that I've annotated with @Serializable(with = LocalDateSerializer::class) (LocalDateSerializer is a class I've created.)
However, now I'm returning a Map<LocalDate, foo> elsewhere and getting an error Can't locate argument-less serializer for class LocalDate. How do I annotate this?

[crummy]

I'm returning it like:

val map: Map<LocalDate, foo> = ...
call.respond(map)

[crummy]

More details: https://stackoverflow.com/questions/61492364/serialize-a-maplocaldate-object-with-ktor-and-kotlinx-serialization

[Paul Woitaschek]

And is it an ide warning or is it actually throwing?

[Paul Woitaschek]

Typically you'd annotate the LocalDate and not the map

[bartvh]

Yes, so that would be Map<@Seria... LocalDate, foo>