Android Studio 3.0 Flavor Dimension Issue

If you don't really need the mechanism, just specify a random flavor dimension in your build.gradle:

android {     ...    flavorDimensions "default"    ...}

For more information, check the migration guide

After trying and reading carefully, I solved it myself.Solution is to add the following line in build.gradle.

flavorDimensions "versionCode"

android {        compileSdkVersion 24       .....       flavorDimensions "versionCode"} 

Here you can resolve this issue, you need to add flavorDimension with productFlavors's name and need to define dimension as well, see below example and for more information see here https://developer.android.com/studio/build/gradle-plugin-3-0-0-migration.html

flavorDimensions 'yourAppName' //here defined dimensionsproductFlavors {    production {        dimension 'yourAppName' //you just need to add this line        //here you no need to write applicationIdSuffix because by default it will point to your app package which is also available inside manifest.xml file.    }    staging {        dimension 'yourAppName' //added here also        applicationIdSuffix ".staging"//(.staging) will be added after your default package name.        //or you can also use applicationId="your_package_name.staging" instead of applicationIdSuffix but remember if you are using applicationId then You have to mention full package name.        //versionNameSuffix "-staging"    }    develop {        dimension 'yourAppName' //add here too        applicationIdSuffix ".develop"        //versionNameSuffix "-develop"    }