android studio 升级3.2+

1、升级gradle 至 gradle-4.6-all.zip
2、项目build.gradle
classpath 'com.android.tools.build:gradle:3.2.0'
3、升级对应的buildToolsVersion
4、如果出现依赖包下载不下来的问题，请先屏蔽掉，一个一个打开下载。

问题一

 applicationVariants.all { variant ->
        variant.outputs.each { output ->
                def outputFile = output.outputFile
                if (outputFile != null && outputFile.name.endsWith('.apk')) {
                    def fileName = "wants-$variant.buildType.name-v${defaultConfig.versionName}-${defaultConfig.versionCode}.apk";
                    output.outputFile = new File(outputFile.parent, fileName)
                }
            }
        }

变更为

applicationVariants.all { variant ->
            variant.outputs.all { output ->
                def outputFile = output.outputFile
                if (outputFile != null && outputFile.name.endsWith('.apk')) {
                    def fileName = "wants-$variant.buildType.name-v${defaultConfig.versionName}-${defaultConfig.versionCode}.apk";
                    outputFileName = fileName
                }
            }
        }

each 变更为all
output.outputFile -> outputFileName

问题二

 Configuration 'compile' is obsolete and has been replaced with 'implementation' and 'api'.

将 compile 替换成implementation