Trying to enable compose in my project (I'm not ac...

# compose

[Colton Idle]

Trying to enable compose in my project (I'm not actually using it anywhere!) and I've been waiting for alpha08 because of kotlin 1.4.20 support and this is the error I get:

androidx.compose.compiler.plugins.kotlin.IncompatibleComposeRuntimeVersionException: You are using an outdated version of Compose Runtime that is not compatible with the version of the Compose Compiler plugin you have installed. The compose compiler plugin you are using (version 1.0.0-alpha08) expects a minimum runtime version of 1.0.0-alpha08.

Anyone else get this?

[Colton Idle]

This is all I'm adding to my app level build.gradle

kotlinOptions {
    jvmTarget = '1.8'
    useIR = true
}
buildFeatures {
    compose true
    viewBinding true
}
composeOptions {
    kotlinCompilerVersion '1.4.20'
    kotlinCompilerExtensionVersion '1.0.0-alpha08'
}

root level build.gradle was changed to this:

classpath 'com.android.tools.build:gradle:7.0.0-alpha01'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.4.20"

and gradle was updated to 6.7.1

I've tried cleaning, building, etc. Any other debugging steps I can take here?

[jaqxues]

Did you not update the actual implementation clauses?

[Colton Idle]

@jaqxues I'm not actually using anything compose related yet. I'm just trying to enable it in general. So I have no deps with implementation yet.

@jim or @Leland Richardson [G] any ideas?

[jim]

Do you have anything else in your build files that mentions alpha07?  In particular, what is your androidx.compose.runtime:runtime dependency version?

[Colton Idle]

@jim I don't have any reference to androidx.compose.runtime.

I literally took my existing project, and followed the docs to add compose, so all I added was really this

kotlinOptions {
    jvmTarget = '1.8'
    useIR = true
}
buildFeatures {
    compose true
    viewBinding true
}
composeOptions {
    kotlinCompilerVersion '1.4.20'
    kotlinCompilerExtensionVersion '1.0.0-alpha08'
}

and that's enough to not allow me to compile.

[Colton Idle]

@jim that was the issue. 😭

I simply added implementation "androidx.compose.runtime:runtime:1.0.0-alpha08" and it worked.

Someone should really clarify in the "Add Jetpack Compose to an existing project" what is mandatory and what's not 😄

https://developer.android.com/jetpack/compose/setup#add-compose

It tells you have to configure kotlin, and gradle, but the toolkit dependencies seem optional. tooling previews, material, etc. No mention of androidx.compose.runtime:runtime:

[Colton Idle]

So close!

My issue of simply enabling compose causing kotlin reflect to break still exists in 1.4.20 and alpha-08. 😭

https://issuetracker.google.com/issues/174692120

[Colton Idle]

@jim you fixed it!!! Thank you thank you thank you. We've been wanting to add compose to our project for what feels like months... but could never even simply enable it. Now we'll be able to. Can't wait to try the snapshot/alpha09!!! ❤️

[Colton Idle]

@jim just used a snapshot that became available.

Compose works. finally. and it's beautiful 😭

[jim]

🎉 Glad to hear it!