When I run an application of Hello Android, I find the following logs.
======= Problem ======================================== ========================
[10:17:44-helloandroid] ----------------------------------
[10:17:44-helloandroid] Android launch!
[10:17:44-helloandroid] ADB is running normally.
[10:17:44-helloandroid] Deming com. example. helloandroid. helloandroidactivity launch
[10:17:44-helloandroid] Automatic Target mode: launching new emulator with compatible AVD 'my _ avd'
[10:17:44-helloandroid] launching a new emulator with virtual device 'my _ avd'
[10:17:50-helloandroid] New emulator found: emulator-5554
[10:17:50-helloandroid] waiting for home ('android. process. acore') to be launched...
[5554 10:22:11-helloandroid] Home is up on device 'emulator-100'
[5554 10:22:11-helloandroid] uploading helloandroid.apk onto device 'emulator-8080'
[10:22:11-helloandroid] installing helloandroid.apk...
[10:24:11-helloandroid] failed to install helloandroid.apk on device 'emulator-5554!
======= Fixed ============================================== ============================
By finding some materials, I know I need to set up the system environment variables, add "C:/marvin/Android/android-sdk_r11-windows/Android-SDK-Windows/tools" to system path. restart eclipse and rerun helloandroid application.
Someone said if you met this problem, you cocould renew an emulator or take several minutes for waiting.