我的当前 Jenkins 构建在尝试在真实的 Android 设备上部署测试时失败了。
我发现一些人在 Travis 上遇到了类似的问题，但我在 Jenkins 中没有找到很多其他人报告这个问题。
正如您可以在 gradle 输出的错误中看到的那样，这是由于在安装测试时触发的 TimeoutException 引起的：
:library:connectedAndroidTestDebug
11:20:37 E/Device: Error during Sync: timeout.
Unable to install /Users/Shared/Jenkins/Home/jobs/WORKSPACE_PATH/build/outputs/apk/library-debug-androidTest-unaligned.apk
com.android.ddmlib.InstallException
at com.android.ddmlib.Device.installPackage(Device.java:853)
at com.android.builder.testing.ConnectedDevice.installPackage(ConnectedDevice.java:91)
at com.android.builder.internal.testing.SimpleTestCallable.call(SimpleTestCallable.java:143)
at com.android.builder.internal.testing.SimpleTestCallable.call(SimpleTestCallable.java:49)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.android.ddmlib.TimeoutException
at com.android.ddmlib.AdbHelper.read(AdbHelper.java:769)
at com.android.ddmlib.SyncService.doPushFile(SyncService.java:695)
at com.android.ddmlib.SyncService.pushFile(SyncService.java:380)
at com.android.ddmlib.Device.syncPackageToDevice(Device.java:1069)
at com.android.ddmlib.Device.installPackage(Device.java:844)
... 9 more
com.android.builder.testing.ConnectedDevice > runTests[Nexus 4 - 4.4.4] [31mFAILED [0m
com.android.builder.testing.api.DeviceException: com.android.ddmlib.InstallException
at com.android.builder.testing.ConnectedDevice.installPackage(ConnectedDevice.java:95)
null
com.android.builder.testing.api.DeviceException: com.android.ddmlib.InstallException
at com.android.builder.testing.ConnectedDevice.installPackage(ConnectedDevice.java:95)
at com.android.builder.internal.testing.SimpleTestCallable.call(SimpleTestCallable.java:143)
at com.android.builder.internal.testing.SimpleTestCallable.call(SimpleTestCallable.java:49)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.android.ddmlib.InstallException
at com.android.ddmlib.Device.installPackage(Device.java:853)
at com.android.builder.testing.ConnectedDevice.installPackage(ConnectedDevice.java:91)
... 8 more
Caused by: com.android.ddmlib.TimeoutException
at com.android.ddmlib.AdbHelper.read(AdbHelper.java:769)
at com.android.ddmlib.SyncService.doPushFile(SyncService.java:695)
at com.android.ddmlib.SyncService.pushFile(SyncService.java:380)
at com.android.ddmlib.Device.syncPackageToDevice(Device.java:1069)
at com.android.ddmlib.Device.installPackage(Device.java:844)
... 9 more
:library:connectedAndroidTestDebug FAILED
FAILURE: Build failed with an exception.
我尝试使用Gradle Wrapper来执行，但和在作业配置中指定版本没有区别- 我尝试了Gradle 2.5-rc-1，Gradle 2.3和Gradle 2.2.1，最后一个版本可以成功运行两次构建，然后开始返回同样的超时错误。
我还尝试设置环境变量：
export ADB_INSTALL_TIMEOUT=10
在 build.gradle 中设置 com.android.ddmlib.DdmPreferences.setTimeOut 参数：
com.android.ddmlib.DdmPreferences.setTimeOut(60000)
我也尝试使用adbOption的'timeOutInMs'，但都没有起作用。
android {
adbOptions {
timeOutInMs 60000 // set timeout to 1 minute
}
}
看起来这是code.google.com上一个持续存在的问题——以下两个帖子似乎与此有关： 还有其他什么建议吗？
谢谢！