Go语言视频零基础入门到精通

2878qw

昨天还是好好的，今天把AVD删了重新创建了个，就出现下面的错误了：
[2011-10-26 19:20:02 - HelloAndroid] ------------------------------
[2011-10-26 19:20:02 - HelloAndroid] Android Launch!
[2011-10-26 19:20:02 - HelloAndroid] adb is running normally.
[2011-10-26 19:20:02 - HelloAndroid] Performing com.liqiang.helloAndroid.HelloAndroid activity launch
[2011-10-26 19:20:02 - HelloAndroid] Automatic Target Mode: Preferred AVD 'protoy' is not available. Launching new emulator.
[2011-10-26 19:20:02 - HelloAndroid] Launching a new emulator with Virtual Device 'protoy'
[2011-10-26 19:21:17 - Emulator] emulator: emulator window was out of view and was recentered
[2011-10-26 19:21:17 - Emulator]  
[2011-10-26 19:21:17 - HelloAndroid] New emulator found: emulator-5554
[2011-10-26 19:21:17 - HelloAndroid] Waiting for HOME ('android.process.acore') to be launched...
[2011-10-26 19:23:55 - HelloAndroid] HOME is up on device 'emulator-5554'
[2011-10-26 19:23:55 - HelloAndroid] Uploading HelloAndroid.apk onto device 'emulator-5554'
[2011-10-26 19:23:55 - HelloAndroid] Installing HelloAndroid.apk...
[2011-10-26 19:26:08 - HelloAndroid] Failed to install HelloAndroid.apk on device 'emulator-5554!
[2011-10-26 19:26:08 - HelloAndroid] (null)
[2011-10-26 19:26:08 - HelloAndroid] Launch canceled!
请问是怎么回事呀？