Kotless with kotlinx.serialization fails

[laithdhawahir]

Hi all,
I have this gradle code.

plugins {
    kotlin("jvm") version "1.5.10"

    // Json serialization
    kotlin("plugin.serialization") version "1.5.10"

    // kotless
    id("io.kotless") version "0.1.6"
}

group = "com.dhawahir.trade.collector"
version = "1.0-SNAPSHOT"

repositories {
    mavenCentral()
    jcenter()

    maven {
        url = uri("https://jitpack.io")
    }
}

dependencies {
    testImplementation(kotlin("test"))

    // kotless
    implementation("io.kotless", "kotless-lang", "0.1.6")

    // Json serialization
    implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.2.1")
}

tasks.test {
    useJUnitPlatform()
}

tasks.withType<KotlinCompile>() {
    kotlinOptions.jvmTarget = "11"
}

When I run this, I get the following error

Your current kotlinx.serialization core version is too low, while current Kotlin compiler plugin 1.5.10 requires at least 1.0-M1-SNAPSHOT. Please update your kotlinx.serialization runtime dependency.

when I do gradle dependencies I see this

+--- io.kotless:kotless-lang:0.1.6
|    \--- io.kotless:lang-common:0.1.6
|         +--- io.kotless:model:0.1.6
|         |    \--- org.jetbrains.kotlin:kotlin-stdlib:1.3.72 -> 1.5.10 (*)
|         +--- org.slf4j:slf4j-api:1.7.30
|         +--- com.amazonaws:aws-java-sdk-core:1.11.788
|         |    +--- commons-logging:commons-logging:1.1.3 -> 1.2
|         |    +--- org.apache.httpcomponents:httpclient:4.5.9
|         |    |    +--- org.apache.httpcomponents:httpcore:4.4.11
|         |    |    +--- commons-logging:commons-logging:1.2
|         |    |    \--- commons-codec:commons-codec:1.11
|         |    +--- software.amazon.ion:ion-java:1.0.2
|         |    +--- com.fasterxml.jackson.core:jackson-databind:2.6.7.3 -> 2.10.4
|         |    |    +--- com.fasterxml.jackson.core:jackson-annotations:2.10.4
|         |    |    \--- com.fasterxml.jackson.core:jackson-core:2.10.4
|         |    +--- com.fasterxml.jackson.dataformat:jackson-dataformat-cbor:2.6.7
|         |    |    \--- com.fasterxml.jackson.core:jackson-core:2.6.7 -> 2.10.4
|         |    \--- joda-time:joda-time:2.8.1
|         +--- org.jetbrains.kotlinx:kotlinx-serialization-runtime:0.20.0
|         |    +--- org.jetbrains.kotlin:kotlin-stdlib:1.3.70 -> 1.5.10 (*)
|         |    \--- org.jetbrains.kotlin:kotlin-stdlib-common:1.3.70 -> 1.5.10
|         \--- com.amazonaws:aws-lambda-java-core:1.2.0

Which I suspect the issue is in org.jetbrains.kotlinx:kotlinx-serialization-runtime:0.20.0 , I am using the right version of kotless can I resolve this issue in gradle ?

[laithdhawahir]

Solved the issue with the following code added to the dependency block

    // Resolve Conflicts
    modules {

        // Resolve conflict between kotless and kotlinx-serialization
        module("org.jetbrains.kotlinx:kotlinx-serialization-runtime") {
            replacedBy(
                "org.jetbrains.kotlinx:kotlinx-serialization-json",
                "kotless is using obsolete version of kotlinx.serialization"
            )
        }
    }

[laithdhawahir]

My previous solution solved the build failure but caused this exception in runtime.

java.lang.NoClassDefFoundError: Could not initialize class io.kotless.dsl.utils.Json
	at io.kotless.local.handler.DynamicHandler.handle(DynamicHandler.kt:46)
	at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:59)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
	at org.eclipse.jetty.server.Server.handle(Server.java:501)
	at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383)
	at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:556)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:273)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
	at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129)
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:375)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938)
	at java.base/java.lang.Thread.run(Thread.java:832)

[TanVD]

Consider for now using 1.4.* version and use Kotless 0.1.7 :)