Does anyone have an example for how to use the navigation tutorial? I can find the decompose library but for some reason gradle doesn't seem to like it, and if a working example exists I'd prefer to work from there

I’ve been using decompose for a while with no issues. What problems are you seeing?

Specifically, adding the decompose and extensions-compose-jetbrains dependencies give me this gradle error:

org.gradle.api.UncheckedIOException: java.io.InvalidClassException: failed to read class descriptor

What version of Gradle and Java are you using? You can get this with ./gradlew --version

sourceSets {
        val commonMain by getting {
            dependencies {
                api(project(":innertube"))
                api(compose.runtime)
                api(compose.foundation)
                api(compose.material)
                api(compose.ui)
                api(compose.animation)
                api(compose.animationGraphics)
                api("com.arkivanov.decompose:decompose:0.6.0")
                api("com.arkivanov.decompose:extensions-compose-jetbrains:0.6.0")
            }
        }

Here's my gradle config. Gradle 7.4, OpenJDK 17

I don’t think I’ve tried 0.6.0 yet. Does 0.5.2 work on your end?

Doesn't look like it

That is odd.

Full build.gradle.kts:

import org.jetbrains.compose.compose

plugins {
    kotlin("multiplatform")
    id("org.jetbrains.compose")
    id("com.android.library")
    id("kotlin-parcelize")
}

group = "com.mewsic"
version = "1.0"

kotlin {
    android()
    jvm("desktop") {
        compilations.all {
            kotlinOptions.jvmTarget = "11"
        }
    }
    sourceSets {
        val commonMain by getting {
            dependencies {
                api(project(":innertube"))
                api(compose.runtime)
                api(compose.foundation)
                api(compose.material)
                api(compose.ui)
                api(compose.animation)
                api(compose.animationGraphics)
                api("com.arkivanov.decompose:decompose:0.5.2")
                api("com.arkivanov.decompose:extensions-compose-jetbrains:0.5.2")
            }
        }
        val androidMain by getting {
            dependencies {
                api("androidx.appcompat:appcompat:1.4.1")
                api("androidx.core:core-ktx:1.7.0")
            }
        }
        val desktopMain by getting {
            dependencies {
                api(compose.preview)
            }
        }
    }
}

android {
    compileSdk = 31
    sourceSets["main"].manifest.srcFile("src/androidMain/AndroidManifest.xml")
    defaultConfig {
        minSdk = 24
        targetSdk = 31
    }
    compileOptions {
        sourceCompatibility = JavaVersion.VERSION_1_8
        targetCompatibility = JavaVersion.VERSION_1_8
    }
}

Do you currently have anything else depending on commonMain? If you don't it will only be jvm.

Both androidMain and desktopMain implicitly depend on it, and so do the separate android and desktop folders

Ok. Both of those are presumably jvm, so commonMain allows anything on the jvm. That's why it suggested the jvm version.

But then how will I support ios when I get around to buying a mac?

Add an iosMain now, and it will change commonMain to require that code is good for Android, iOS, and jvm.

What is the Kotlin version?

Try a gradle clean? If that doesn't work, delete the .gradle folder (specifically .gradle, not gradle) and rebuild.

Kotlin version is 1.6.10, already tried deleting the .gradle folder

Just confirmed that 0.6.0 works on my project.

Adding an ios() configuration gives this error:

Could not determine the dependencies of task ':commonizeNativeDistribution'.
> Could not resolve all files for configuration ':kotlinKlibCommonizerClasspath'.
   > Cannot resolve external dependency org.jetbrains.kotlin:kotlin-klib-commonizer-embeddable:1.6.10 because no repositories are defined.
     Required by:
         project :

You depend on Compose in common, I think you can't add the ios target. What is the compose version btw?

I'm using MPP I think? version 1.0.1

The latest alpha does (1.2.0-alpha01-dev620)

extensions-compose-jetbrains depends on Compose 1.1.0, could you please try setting this version?

looks like the class does exist but the IDE doesn't see it until I import it directly

You may try deleting the .idea folder and reopening the project, it often helps