错误Re-installation failed due to different application signatures.

 错误内容：

[2014-03-18 21:22:38 - cocos2d_android] Re-installation failed due to different application signatures.

[2014-03-18 21:22:38 - cocos2d_android] You must perform a full uninstall of the application. WARNING: This will remove the application data!

[2014-03-18 21:22:38 - cocos2d_android] Please execute 'adb uninstall org.cocos2d' in a shell.

[2014-03-18 21:22:38 - cocos2d_android] Launch canceled!

错误原因：是因为签名不一致，你的设备或模拟器上已经有了一个程序，与当前发表的签名不一致！

解决方案：卸载手机上原有的app，再重新下载了安装就可以了！