Android学习笔记002

001的问题已经没有了，估计是我又更新了Android的SDK 的关系。所以接下来的问题又来了 日志截图如下：

[2015-08-15 13:57:59 - HelloWorld] ------------------------------
[2015-08-15 13:57:59 - HelloWorld] Android Launch!
[2015-08-15 13:57:59 - HelloWorld] adb is running normally.
[2015-08-15 13:57:59 - HelloWorld] Performing com.example.helloworld.MainActivity activity launch
[2015-08-15 13:57:59 - HelloWorld] Automatic Target Mode: Preferred AVD ‘MyAndroidDevice‘ is available on emulator ‘emulator-5554‘
[2015-08-15 13:57:59 - HelloWorld] Uploading HelloWorld.apk onto device ‘emulator-5554‘
[2015-08-15 13:58:00 - HelloWorld] Installing HelloWorld.apk...
[2015-08-15 14:00:25 - HelloWorld] Failed to install HelloWorld.apk on device ‘emulator-5554!
[2015-08-15 14:00:25 - HelloWorld] (null)
[2015-08-15 14:00:26 - HelloWorld] Launch canceled!

这个到底是什么呢？

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Android学习笔记002

原文：http://1053022.blog.51cto.com/1043022/1684843