Any thoughts on this error `ClassNotFoundException...

# ktor

[Manas Marthi]

Any thoughts on this error ClassNotFoundException: org.jetbrains.kotlin.name.ClassId I was making basic changes to a login form and the POST handler is failing when I try to call call.respondRedirecT("/")

[Manas Marthi]

I added map<String, Any> to UserSession class. Session serialization does not like Any. It sassy no serialiser found. Annotate Any with ‘@Contextual’ . Not sure what it means

[Aleksei Tirman [JB]]

The error occurs because the Any type doesn't have a serializer defined at the compile-time. You can read about the contextual serialization in the documentation of the kotlinx.serialization framework.

Have you resolved the problem with the ClassNotFoundException ?

[Manas Marthi]

Session serialization does not work when I use LocalDate members. I had to add @Contexualize annotation. I tried to use KTORM orm instead of Exposed ORM. That also seems to have caused error. I had to convert KTORM instances into a @Serializable data class object. Serialization fails when any object is of type Any . So trying to store a Map<String,Any> bombs out.

[Manas Marthi]

It finally worked after I removed all Any properties and made the above mentioned changes

[Manas Marthi]

KTORM ORM uses interfaces to define entity objects. So I can't add @Serialziable @Contextual annotations. KTOR Sessions and KTORM entity objects don't work with each other as of now. Probably I will find a way forward when I am more familiar with Kotlin type system

[Manas Marthi]

Not sure why it got sent to the channel