unity3d+Android：apk未打入jar包，重复打入jar，temp临时目录，AS工程调试，Program type already present: com.xxx.BuildConfig

检查APK是否打进Jar包

1.apk用winrar打开，提取class.dex文件，用dex2jar转换为jar文件

Temp目录

数据缓存（Data caches），写入临时文件和其他操作系统维护相关的东西就扔到 Temp 目录。如果是安卓出包，可以初步检查里面jar包是否打入

Jar包移动路径后重复打入jar

值得注意：如果一个cloudcore.jar包直接放入Assets/Plugins/Android目录下，识别为了native文件，为一个拼图icon

再移入例如Assets/Plugins/Android/GCloudCore/ib目录下，

打apk失败，报错 CommandInvokationFailure: Unable to convert classes into dex format. E:/AndroidSdk/jre\bin\java.exe -Xmx4096M -Dcom.android.sdkmanager.toolsdir=“E:/AndroidSdk/UnityAndroidSdk/sdk\tools” -Dfile.encoding=UTF8 -jar “D:\Program Files\Unity2017.4.40\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\sdktools.jar” - stderr[ warning: Ignoring InnerClasses attribute for an anonymous inner class (com.tencent.tp.h) that doesn’t come with an associated EnclosingMethod attribute. 可以查看temp临时出包目录出现2个cloudcore.jar

解决：移动到子目录后，右键重导入

变为普通jar包，icon也从拼图变为jar包样式

再build，出包正常，temp目录也只有一个GCloudCore.jar

接入不同sdk版本需求

例如gcloud ● minSdkVersion：>=15 ● targetSdkVersion：28 先到本地 Android SDK 目录下，打开sdk manager 下载 android-28。 在菜单栏file->Build Settings中，进入Player Settings，设置Minimum API Level和Target API Level 所有接入sdk，要仔细阅读文档对sdk需求确定

导出AS工程打包调试

stderr[ warning: Ignoring InnerClasses attribute for an anonymous inner class (com.tencent.tp.h) that doesn’t come with an associated EnclosingMethod attribute. This class was probably produced by a compiler that did not target the modern .class file format. The recommended solution is to recompile the class from source, using an up-to-date compiler and without specifying any “-target” type options. The consequence of ignoring this warning is that reflective operations on this class will incorrectly indicate that it is not an inner class. 有时报这错，一直找到不哪个类被重复打包，只能导出as工程进行调试，会比editor输出更多错误信息

Program type already present : com.xxx.xxxx.BuildConfig

jar包被重复打包，他内部自带了BuildConfig，再打包时又生成了BuildConfig

解决办法：改AndroidMainifest里的包名，然后重新生成