also, after upgrading to 1.0.0-RC I'm getting `Back-end (JVM) Internal error: wrong bytecode generat...

# serialization

[Karlo Lozovina]

also, after upgrading to 1.0.0-RC I'm getting Back-end (JVM) Internal error: wrong bytecode generated errors... any idea where to start with that one? (Java/Kotlin newb here)

[Javier]

Maybe using the new backend solves the problem. Check the official blog post about 1.4

[Karlo Lozovina]

I did try to upgrade everythign to the latest, plugins, kotlinc, serialization, etc, etc...

[Karlo Lozovina]

will try to reproduce a minimal example

[Javier]

Did you add it to gradle.properties?

[Karlo Lozovina]

no I haven't! what should go there?

[Karlo Lozovina]

didnt' see that mentioned anywhere... 😕

[Javier]

It is on the blog post, search for new backend

[Karlo Lozovina]

must be blind, can't even find the blog post 😄

[Javier]

https://kotlinlang.org/docs/reference/whatsnew14.html#new-jvm-ir-backend

[Karlo Lozovina]

still the same 😕
thanks anyway, would have never found that on my own...

[Karlo Lozovina]

starting from a blank gradle init seems to work... I'll try recreating the project, maybe that'll work

[Karlo Lozovina]

huh, it seems the error was because I had an inline class somewhere... weird

[Vsevolod Tolstopyatov [JB]]

inline classes are not supported, but still this is clearly a bug, you should have received a clear error messages “inline classes are not supported”. Could you please file a bug?

[Karlo Lozovina]

Couldn't manage to reproduce a minimal example, but in my codebase changing from data class to inline class causes the problem.

For what is worth, I'm not using @Serializable annotation (that does give me the correct error saying that inline classes are not supported), I'm implementing a KSerializer by hand...

[Javier]

Serialization doesnt work with inline classes, it is not a Kotlin 1.4 problem