Hello! I updated to 1.4.20, and now all my synthet...

# android

[Nikita Khlebushkin]

Hello! I updated to 1.4.20, and now all my synthetic views are highlighted red, without any code suggestion or quick documentation (it all builds and work fine though). How do I get the code completion back?

[kenkyee]

Try deleting the .gradle folder at your project root. I've seen this happen with older versions too...some sort of stale cache...
This sometimes helps...

[Joost Klitsie]

synthetics have been removed from kotlin 1.4.20

[Joost Klitsie]

so you will have to either revert to 1.4.10

[Joost Klitsie]

or use another solution

[Joost Klitsie]

I'd suggest if you are in a hurry, use 1.4.10, but for the future you could perhaps use viewBinding

[Nikita Khlebushkin]

Thanks for the advice! Rolled back to 1.4.10 Gradle plugin, but the syntax is still all red. Maybe I need to rollback the IDEA plugin as well...

[Nikita Khlebushkin]

Rolled back IDEA plugin as well, it's still all red

[Nikita Khlebushkin]

Removed .gradle folder, restarted Android Studio - it's still red

[Joost Klitsie]

invalidate caches

[Joost Klitsie]

clean/rebuild

[kingsley]

The plugin was not removed in 1.4.20. It got deprecated in favor of a more granular plugin that only supports Parcelize. However, kotlin-android-extensions plugin is still available and shouldn’t cause any problems. I have it in my project and it still works fine after updating to 1.4.20

But yea, try invalidate cache and restart. Hopefully that should help

[kenkyee]

Remove .idea in the project dir as well?
This has happened in AS before kotlin 1.4.20 FYI

[Nikita Khlebushkin]

Invalidating cache didn't help

[Nikita Khlebushkin]

Clean/rebuild didn't help, rebuild failed on every extension function used on synthetic field

[kingsley]

Can you share your build.gradle setup?

[Nikita Khlebushkin]

build.gradle.kts

build.gradle.kts

[Nikita Khlebushkin]

I checked out the project from another computer, same result after rebuild
IDEA Kotlin Plugin version: 1.4.20-release-Studio4.1-1
Gradle Kotlin Plugin version: 1.4.10

[Nikita Khlebushkin]

The changes applied in code via synthetic view references are completely missing from the app if the syntax is highlighted as red

[kingsley]

Looks like you’re missing the androidExtensions configuration block. So it was probably working before as a result of an open bug that is now fixed. You need to add this block:

androidExtensions {
  isExperimental = true
}

to turn on the view stuff

[Nikita Khlebushkin]

Added to android block this:

androidExtensions {
    isExperimental = true
}

Cleaned project, invalidated cache. restarted IDE - the problem is still there

[Nikita Khlebushkin]

In my settings.gradle.kts I had this block:

pluginManagement {
    repositories {
        gradlePluginPortal()
        google()
        jcenter()
        mavenCentral()
    }
    resolutionStrategy {
        eachPlugin {
            if (requested.id.namespace == "com.android" || requested.id.name == "kotlin-android-extensions") {
                useModule("com.android.tools.build:gradle:4.0.1")
            }
        }
    }
}

(I use KMM module, this block was in the generated template). I tried building with and without this block, but no success

[kingsley]

Wow! That sucks. I have no idea what could be wrong
The project still builds and works fine right? And you reverted all the changes, but the issue still persists?

[Nikita Khlebushkin]

It does build, but the changes done via synthetic views are ignored in the run

[Nikita Khlebushkin]

Reverting the changes didn't help, yes

[kingsley]

In that plugin management, Kotlin Android extensions should be mapped to the kotlin plugin not AGP

[Nikita Khlebushkin]

And I managed to reproduce the issue on another laptop in the same project after I updated IDE's Kotlin Plugin

[kingsley]

But you said reverting all changes doesn't help. So that's strange

[kingsley]

Ahaa. This only happens if IDE plugin is upgraded to Kotlin 1.4.20?

[kingsley]

Does it help if you revert IDE plugin to 1.4.10?

[kingsley]

If yes, then perhaps best to should open an issue on youtrack, so Kolton team can look into it

[kingsley]

I remember vaguely that I had some issues with 1.4.20 EAPs. But can't remember the details now. The stable plugin actually works fine for me

[Nikita Khlebushkin]

I will try to revert the plugin and see if it helps

[Nikita Khlebushkin]

Alas, this is IDE Plugin related issue - rollback to 1.4.10 works

[kingsley]

Awesome! What version of AS are you using?

[Nikita Khlebushkin]

image.png

[Nikita Khlebushkin]

Actually, the problem is back there after Invalidating cache + restart

[Nikita Khlebushkin]

It seems like the synthetic fields stop working when I plug KMM module