创建多组product flavors后全部合并为单个构建变体的问题咨询

Hey there! Let's figure out why your build variants ended up as blueRedGreenDebug and blueRedGreenRelease instead of separate, expected variants like blueDebug, greenDebug, etc.

The Root Cause #

This happens because you didn't explicitly define a flavor dimension for your product flavors. By default, Gradle lumps all unassigned flavors into a single default dimension, which forces them to combine into one merged flavor name instead of creating independent variants for each.

Step-by-Step Fix #

Follow these changes in your module-level build.gradle (or build.gradle.kts if you're using Kotlin DSL) file:

1. Define a flavor dimension
   First, add a dimension (we'll use "color" as an example, but you can name it anything meaningful) inside the android block:

   android {
       // ... other configs like compileSdk, defaultConfig ...
       
       flavorDimensions "color"
   }
   

2. Assign the dimension to each product flavor
   Update each of your blue/green/red flavors to reference the dimension you just created:

   android {
       // ... existing configs ...
       
       productFlavors {
           blue {
               dimension "color"
               // Add any other flavor-specific config here (e.g., applicationIdSuffix ".blue")
           }
           green {
               dimension "color"
           }
           red {
               dimension "color"
           }
       }
   }
   

3. Sync your Gradle project
   Click the "Sync Now" button in Android Studio's toolbar to apply the changes.

What Happens Next? #

After syncing, you'll see all the individual build variants you expected: blueDebug, blueRelease, greenDebug, greenRelease, redDebug, and redRelease. Each flavor will now build as a separate variant instead of being merged into one.

内容的提问来源于stack exchange，提问作者Suraj Vaishnav