报错如下：
[2012-06-21 12:56:17 - xmobile17] Installation error: INSTALL_FAILED_MEDIA_UNAVAILABLE
[2012-06-21 12:56:17 - xmobile17] Please check logcat output for more details.
[2012-06-21 12:56:18 - xmobile17] Launch canceled!
解决：
adb shell
pm set-install-location: changes the default install location.
NOTE: this is only intended for debugging; using this can cause
applications to break and other undersireable behavior.
0 [auto]: Let system decide the best location
1 [internal]: Install on internal device storage
2 [external]: Install on external media
shell@android :/ $ pm set-install-location 1
pm set-install-location 1
shell@android :/ $
参考：http://blog.csdn.net/qhs1573/article/details/8201380
Installation error: INSTALL_FAILED_MEDIA_UNAVAILAB
原文：http://my.oschina.net/macleo/blog/314202