hey guys! We have updated kotlin, kotlinx and ktor in our project up to versions 1.5.0 and 1.5.4. Al...

# coroutines

[Kirill Gribov]

hey guys!
We have updated kotlin, kotlinx and ktor in our project up to versions 1.5.0 and 1.5.4.
Also we decided to try new value classes in requests and responses.
We deployed our changes and have faced next errors:

[Kirill Gribov]

Untitled

[Kirill Gribov]

Untitled

[Kirill Gribov]

Sounds like it is similar to this problem - https://kotlinlang.slack.com/archives/C1CFAFJSK/p1621019550451100

[Kirill Gribov]

But I m not sure is it ktor issue or coroutines

[Kirill Gribov]

if we use data class instead of value class - everything works perfectly.

[Kirill Gribov]

The worst part of it, that we can't reproduce it on a sample project, so we face it only in our big project 🤦

But may be someone has already faced this issue and can give us any insights 🙏
In a meantime we will try to find a way how to reproduce it on a small project.
Thanks!

[louiscad]

Do you have JVM IR disabled in one of the modules?

[Kirill Gribov]

if you are talking about

compileKotlin {
    kotlinOptions.useIR = true
}

we didn't enable it.
our config is:

compileKotlin {
    sourceCompatibility = "$java_version"
    targetCompatibility = "$java_version"

    kotlinOptions {
        jvmTarget = "$java_version"
        allWarningsAsErrors = true
        freeCompilerArgs += "-Xopt-in=kotlin.RequiresOptIn"
    }
}

[louiscad]

In 1.5, it's enabled by default. My question was only if you explicitly disabled it somewhere, which it seems you didn't.

[Joffrey]

AFAIK Ktor has not been released yet with a Kotlin 1.5-based version

[Kirill Gribov]

https://kotlinlang.org/docs/releases.html#release-details

Build info	Build highlights	Recommended kotlinx library versions
1.5.0                           ktor version: 1.5.3

🤷

[Joffrey]

I know it seems strange but that's what I was told (I was also bitten by it). If it's any indication, Ktor 1.5.3 depends on coroutines 1.4.3:
https://ktor.io/changelog/1.5/
(and probably still Kotlin 1.4.21, but I haven't checked that)