Gradle升级到3.2.1的过程

Gradle插件最新版本3.21

classpath'com.android.tools.build:gradle:3.2.1'

然后开始填坑之旅

问题一：

Cannotset thevalueofread-only property'outputFile'for ApkVariantOutputImpl_Decorated{apkData=Main{type=MAIN, fullName=commonDebug, filters=[]}}of type com.android.build.gradle.internal.api.ApkVariantOutputImpl.Open File

解决方案：

问题二：

Error:All flavors must now belongtoa named flavor dimension. Learn moreathttps://d.android.com/r/tools/flavorDimensions-missing-error-message.html

解决方案：

问题三：

Error:Execution failedfor task':Loan:javaPreCompileCommonDebug'. > Annotation processors must be explicitly declared now. The following dependencieson the compile classpath are foundto contain annotation processor. Pleaseadd themto the annotationProcessor configuration. - butterknife-compiler-8.6.0.jar (com.jakewharton:butterknife-compiler:8.6.0) Alternatively,set android.defaultConfig.javaCompileOptions.annotationProcessorOptions.includeCompileClasspath =truetocontinuewith previous behavior. Note that this optionisdeprecatedand will be removedin thefuture. See https://developer.android.com/r/tools/annotation-processor-error-message.html for more details.

解决方案：

问题四：

The SourceSet ‘instrumentTest’ is not recognized by the Android Gradle Plugin.

解放方案：

问题五：

找不到引用的库

解决方案：

其他警告