I updated ktor to `2.3.4` from `2.3.1` and suddenl...

# ktor

[Endre Deak]

I updated ktor to 2.3.4 from 2.3.1 and suddenly I get this error:

Serializer for class 'Id' is not found.
Please ensure that class is marked as '@Serializable' and that the serialization compiler plugin is applied.

see the code below:

// resource definition:
import io.ktor.resources.Resource

@Resource("/foos")
class FooResources {
    @Resource("create")
    class New(val parent: FooResources = FooResources(), val name: String)

    @Resource("{id}")
    class Id(val parent: FooResources = FooResources(), val id: Int) {
        @Resource("edit")
        class Edit(val parent: Id, val name: String)
    }
}

// client call:
val client = createClient {
    install(Resources)
}
client.get(FooResources.Id(id = fooId))

Any clues what changed? I don't really want to go and start annotate all the resources with serializable just to be able to use type-safe requests

[Aleksei Tirman [JB]]

Unfortunately, I cannot reproduce your problem. The @Serializable annotation for the resources became redundant since Ktor 2.2.2.

[Endre Deak]

the error stacktrace starts with this:

at app//kotlinx.serialization.internal.Platform_commonKt.serializerNotRegistered(Platform.common.kt:92)
	at app//kotlinx.serialization.internal.PlatformKt.platformSpecificSerializerNotRegistered(Platform.kt:28)
	at app//kotlinx.serialization.SerializersKt__SerializersKt.serializer(Serializers.kt:134)
	at app//kotlinx.serialization.SerializersKt.serializer(Unknown Source)
	at app//kotlinx.serialization.SerializersKt__SerializersKt.serializer(Serializers.kt:72)
	at app//kotlinx.serialization.SerializersKt.serializer(Unknown Source)

maybe something is pulled in secretly

[Endre Deak]

figured out. Forgot to update the serialization plugin from 1.8.0 to 1.9.0