Re-installation failed due to different application signatures.

运行android程序出现问题：

[2012-09-08 23:52:13 - Phone] Re-installation failed due to different application signatures.
[2012-09-08 23:52:13 - Phone] You must perform a full uninstall of the application. WARNING: This will remove the application data!
[2012-09-08 23:52:13 - Phone] Please execute 'adb uninstall com.android.phone' in a shell.
[2012-09-08 23:52:13 - Phone] Launch canceled!

 

在命令行执行了命令：

E：\android-sdk-windows\platform-tools>adb unistall com.android.phone

但是出现了：Failure