问题：
centos 6.5 + jenkins + gradle 编译Android 工程时，一直停在
Exception in thread "png-cruncher_4" java.lang.RuntimeException: Timed out while waiting for slave aapt process, make sure the aapt execute at /home/work/software/android-sdk-linux/build-tools/22.0.1/aapt can run successfully (some anti-virus may block it) or try setting environment variable SLAVE_AAPT_TIMEOUT to a value bigger than 5 seconds
at com.android.builder.png.AaptProcess.waitForReady(AaptProcess.java:108)
at com.android.builder.png.QueuedCruncher$1.creation(QueuedCruncher.java:110)
at com.android.builder.tasks.WorkQueue.run(WorkQueue.java:203)
at java.lang.Thread.run(Thread.java:748)
Exception in thread "png-cruncher_10" java.lang.RuntimeException: Timed out while waiting for slave aapt process, make sure the aapt execute at /home/work/software/android-sdk-linux/build-tools/22.0.1/aapt can run successfully (some anti-virus may block it) or try setting environment variable SLAVE_AAPT_TIMEOUT to a value bigger than 5 seconds
at com.android.builder.png.AaptProcess.waitForReady(AaptProcess.java:108)
at com.android.builder.png.QueuedCruncher$1.creation(QueuedCruncher.java:110)
at com.android.builder.tasks.WorkQueue.run(WorkQueue.java:203)
at java.lang.Thread.run(Thread.java:748)
当然上面的线程的数字一直在变~~~ 就在这一步一直waiting....
解决方案：
执行如下命令（我是root下执行的，如果安装失败，请切换到root）
yum install zlib-devel ncurses-devel libX11-devel libXrender libXrandrl glibc glibc-devel libstdc++
yum install glibc.i686 glibc-devel.i686 libstdc++.i686 zlib-devel.i686 ncurses-devel.i686 libX11-devel.i686 libXrender.i686 libXrandr.i686重新打包即可
原因初探：
1. 我的centos 是64位的，而 Android SDK 中adb等工具是32位的，所以需要提供32位的支持，上述命令即提供32位支持的
ubuntu 执行：
sudo apt-get install libc6:i386 libncurses5:i386 libstdc++6:i386 lib32z1 libbz2-1.0:i386
Fedora 17 64bit with Android SDK:
sudo yum install glibc.i686 zlib.i686 libstdc++.i686 ncurses-libs.i686
Fedora 20 64bit with Android SDK
sudo yum install glibc zlib libstdc++ ncurses-libs mesa-libGL-devel adb