Recently I have had to update my project to use Gradle 4.4 from 4.1. i.e.
distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip
in my gradle-wrapper.properties file.
However, this is incompabitble with the fabric plugin
apply plugin: 'io.fabric'
As since the gradle update, I now get build errors when syncing my project. Such as:
Error:Could not get unknown property 'manifestFile' for task ':Module:generateVariantFlavorRFile' of type com.android.build.gradle.internal.res.GenerateLibraryRFileTask.
Does anyone know when/if there will be a new plugin update that is compatible with gradle 4.4+?
So my project included feature modules, where in the the base module's build.gradle, I apply the fabric plugin. i.e. apply plugin: 'io.fabric'
It turns out that gradle version 4.4 + does work but you need to add the following:
crashlytics { instantAppSupport true }
in your base module's build.gradle. I didn't actually have an instant app, but even with feature modules in appears that this line is needed.
More info on how this can be added can be found here: How do I integrate Crashlytics with Android Instant Apps?
来源：https://stackoverflow.com/questions/49007025/fabric-plugin-incompatible-with-gradle-4-4