Hello folks, :wave::skin-tone-4: I've recently st...

# koin

[Helio]

Hello folks, 👋🏽

I've recently start planning the upgrade of Ktor 2.x to Ktor 3.x and I noticed that we have the opened issue https://github.com/InsertKoinIO/koin/issues/1716 and I thought that confirming here it would be better than raising a new issue.

I noticed that during the migration, we are receiving exceptions such as the below. Are you able to confirm that these issues should be fixed once the Ticket is resolved?

java.lang.NoClassDefFoundError: io/ktor/server/routing/RoutingKt
        at org.koin.ktor.ext.RouteExtKt.getKoin(RouteExt.kt:74)

Thanks in advance for the help here.

[Olivier Patry]

I had something similar at some point with Coil.
I migrated to Ktor 3 but kept Coil depends on coil-network-ktor2 which led to a NoClassDefFoundError.

Would it be possible that you depends on a Koin module relying on ktor2 that should be updated to depend on ktor3 ?

[Helio]

It is a very small service, and I don't have many modules being loaded. I only have a single module that depends on Ktor, and that's the one being upgraded to Ktor 3.

[Helio]

I reckon the issue seems to be related to the Opened issue indeed. I'm afraid I won't be able to complete the migration until Koin supports Ktor 3. I will keep watching it and hopefully once it is released I might be able to re-test.

I was able to successfully test out the changes with Ktor 2 and Koin 4, and works as expected. But with Ktor 3. The error java.lang.ClassNotFoundException: io.ktor.server.routing.RoutingKt prevent dependencies from being injected successfully. 😞

[Helio]

Feels like the issue is sort of the same.
https://github.com/InsertKoinIO/koin/issues/2008

[Olivier Patry]

https://github.com/InsertKoinIO/koin/issues/1716 then 🙂

[Helio]

Yep. 100% that one. =)

[Helio]

Thanks for all the assistance BTW.