adb: failed to install xxx.apk: Failure [INSTALL_FAILED_UPDATE_INCOMPATIBLE: Package com.xxx.deliveryrobot signatures do not match the previously installed version; ignoring!]

解决方法：我是在安装软件时出现的这个错误，先卸载再安装即可

卸载：

adb uninstall "com.yourapp.yourapp"

安装：

adb install yourapp.apk

参考：https://stackoverflow.com/questions/31489567/manually-installing-an-updated-apk-fails-with-signatures-do-not-match-the-previ