解决AS升级3.4 ERROR: All flavors must now belong to a named flavor dimension.Learn m

AS升级到3.4.2之后在多渠道环境下编译出错,错误提示为:"ERROR: All flavors must now belong to a named flavor dimension. Learn more at https://d.android.com/r/tools/flavorDimensions-missing-error-message.html,Affected Modules: ModuleName".

错误:要求所有的flavors要在同一个维度。

解决办法:在build.gradle文件defaultConfig下添加:

  compileSdkVersion 22
    buildToolsVersion '28.0.3'
    defaultConfig {
        applicationId "com.kyunglip"
        minSdkVersion 17
        targetSdkVersion 19
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        multiDexEnabled true

        //buildConfigField 默认值，特殊渠道属性可以重写
        buildConfigField "Boolean ", "SPEECH_ENABLED", "true"

        ndk {
            abiFilters 'armeabi-v7a'
        }
        //添加此行
       flavorDimensions "default"
    }

其中，“default"值可以是任意，但一般都是default。添加完之后重新syn。