我一直在处理一个应用程序很长一段时间没有任何问题。两周前，我创建了一个密钥库来签署我的申请。事实上，我在家里和办公室里开发了两台机器。 自从我生成密钥库以来，每当我更换机器时，我都会收到此消息：
Installation failed since the device already has an application with the same package but a different signature.
In order to proceed, you have to uninstall the existing application.
WARNING: Uninstalling will remove the application data!
Do you want to uninstall the existing application?
由于