升级Gradle与Android插件后Fabric Beta分发缺失版本名称

I've run into exactly this problem before when upgrading to Android Gradle Plugin (AGP) 3.x series — the Fabric Beta distribution would either drop the full version name entirely or only show the suffix instead of the complete versionName from your config. Here's how to resolve both issues you mentioned:

Root Cause #

AGP 3.0+ introduced changes to how variant properties (like versionName) are accessed, and older versions of the Fabric Gradle plugin (like your 1.25.1) don't fully adapt to these changes. This causes Fabric to incorrectly pull only the version suffix instead of the full, configured version name for Beta distribution titles.

Step-by-Step Solutions #

1. Ensure Your Base Version Name is Correctly Configured #

First, double-check that your defaultConfig has a complete, properly formatted versionName (this is the foundation Fabric should use):

android {
    defaultConfig {
        versionName "1.5.2" // Your full, desired version name here
        // Rest of your default config (applicationId, minSdkVersion, etc.)
    }
}

2. Explicitly Set Fabric Beta Distribution Title #

The most reliable fix is to manually define the distribution title in your build type or product flavor, directly referencing your versionName. This bypasses Fabric's broken auto-detection logic.

Add this to your app module's build.gradle under the relevant buildType (e.g., release):

android {
    buildTypes {
        release {
            // Your existing configuration (minifyEnabled, proguardFiles, etc.)
            
            // Force Fabric to use your full version name for the distribution title
            ext.betaDistributionTitle = "Your App Name v${defaultConfig.versionName}"
            
            // Optional: Set release notes to include the version too
            ext.betaDistributionReleaseNotes = "Update: v${defaultConfig.versionName} — bug fixes and performance improvements"
        }
    }
}

If you use product flavors, you can dynamically set the title per variant:

android {
    productFlavors {
        demo {
            versionName "1.5.2-demo"
        }
        full {
            versionName "1.5.2-full"
        }
    }

    // Apply title to all variants
    applicationVariants.all { variant ->
        variant.ext.betaDistributionTitle = "Your App Name v${variant.versionName}"
    }
}

3. Upgrade the Fabric Gradle Plugin (Optional but Recommended) #

Your current Fabric plugin version (1.25.1) is quite old and doesn't fully support AGP 3.x. Upgrading to a newer compatible version will fix the auto-detection issue permanently. Update the classpath in your app module's build.gradle:

buildscript { 
    repositories { 
        maven { url 'https://maven.fabric.io/public' } 
    } 
    dependencies { 
        // Use a newer Fabric plugin version compatible with AGP 3.0.1
        classpath "io.fabric.tools:gradle:1.31.2" 
    } 
}

Verify Your Configuration #

After making these changes, run a Beta distribution build (e.g., ./gradlew assembleRelease crashlyticsUploadDistributionRelease) and check the Fabric Beta dashboard — the distribution title should now show your full, complete version name.

内容的提问来源于stack exchange，提问作者Alex Klimashevsky