Hi guys, I'm converting my android project to kotlin multiplatform and I'm running into a simulator crash when running my app. The logcat error is

Failed to find HTTP client engine implementation in the classpath: consider adding client engine dependency

. My client looks like this:

private val client = HttpClient() {
        install(Logging)
        install(ContentNegotiation) {
            json(Json {
                prettyPrint = true
                isLenient = true
                ignoreUnknownKeys = true
            })
        }
    }

And my

shared

module (where my ktor code lives) looks like this (I'm using kotlin 1.9.20)

commonMain {
            dependencies {
                implementation(libs.ktor.client.core) // 2.3.5
                implementation(libs.kotlinx.serialization.json) // 1.6.0
                implementation(libs.kotlinx.coroutines.core) // 1.7.3
                implementation(libs.ktor.client.content.negotiation) // 2.3.5
                implementation(libs.ktor.serialization) // 2.3.5
                implementation(libs.ktor.logging) // 2.3.5
            }
        }

I didn't have an

androidMain

sourceSet defined so, one of the things I tried was to add one with the same dependencies as commonMain (based on a thread from 3 years ago) but that didn't help the issue go away. Is there a different place I should be adding the engine? The reason I'm not specifying an engine in my

HttpClient()

declaration is because I just wanted to use the default engine, should I be using a different engine? I had a thread about a month ago where I was using CIO but that led to issues with my ios app not running

HttpClient without a specific engine tries to fetch an engine from the classpath, specified by your dependencies. You could either use CIO or use the platform specific engine by adding the dependency.

So I need to add an engine in my

app

dependencies? or still in my

shared

module?

It does not matter, both modules are merged in your classpath but from the module structure you only need it in your app, so app dependencies.

Got it. Thank you!