用了好几天的时间，安装eclipse+ADT+SDK，想跑一个简单的Hello，试了两种方案，始终没有成功。搭建android开发环境很困难吗。两种方案：
（1）adt-bundle-windows-x86_64-20140702.zip捆绑包
（2）eclipse-java-2020-12-R-win32-x86_64.zip+ADT-23.0.7.zip+android-sdk_r24.4.1-windows.zip
所用JDK版本：jdk-15.0.1_windows-x64_bin.exe
最终的结果都卡在：什么鬼？
Errors occurred during the build.
Errors running builder 'Android Package Builder' on project 'Hello'.
sun/misc/BASE64Encoder
（1）adt-bundle-windows-x86_64-20140702.zip捆绑包
（2）eclipse-java-2020-12-R-win32-x86_64.zip+ADT-23.0.7.zip+android-sdk_r24.4.1-windows.zip
所用JDK版本：jdk-15.0.1_windows-x64_bin.exe
最终的结果都卡在：什么鬼？
Errors occurred during the build.
Errors running builder 'Android Package Builder' on project 'Hello'.
sun/misc/BASE64Encoder
