今天调试一个android应用的时候，安装报了Installation error: INSTALL_FAILED_UPDATE_INCOMPATIBLE错误，代码如下：
? 1 2 3 4 5 6 7 8 9 10 [ 2015 - 12 - 28 15 : 54 : 31 - MainActivity] ------------------------------ [ 2015 - 12 - 28 15 : 54 : 31 - MainActivity] Android Launch! [ 2015 - 12 - 28 15 : 54 : 31 - MainActivity] adb is running normally. [ 2015 - 12 - 28 15 : 54 : 31 - MainActivity] Performing com.runbo.outdoormeter.MainActivity activity launch [ 2015 - 12 - 28 15 : 54 : 31 - MainActivity] Automatic Target Mode: using device 'QCS4BU6HY9C68LY5' [ 2015 - 12 - 28 15 : 54 : 31 - MainActivity] Uploading MainActivity.apk onto device 'QCS4BU6HY9C68LY5' [ 2015 - 12 - 28 15 : 54 : 35 - MainActivity] Installing MainActivity.apk... [ 2015 - 12 - 28 15 : 54 : 36 - MainActivity] Installation error: INSTALL_FAILED_UPDATE_INCOMPATIBLE [ 2015 - 12 - 28 15 : 54 : 36 - MainActivity] Please check logcat output for more details. [ 2015 - 12 - 28 15 : 54 : 36 - MainActivity] Launch canceled!好吧，安装不了。因为这个APP是通过系统内置的APP，之前都是直接在linux环境下直接编译该apk再重新push进手机即可，今天我不想这么麻烦，直接在Eclipse下编译再安装该APK就报了这个错误。
使用 adb shell rm system/app/OutdoorMeter/OutdoorMeter.apk 命令将该APK文件删除后，再进行安装还是报相同的错误：Installation error: INSTALL_FAILED_UPDATE_INCOMPATIBLE
? 1 adb shell rm system/app/OutdoorMeter/OutdoorMeter.apk使用adb uninstall com.runbo.outdoormeter 命令删除该APK文件也删除失败
? 1 2 C:\Documents and Settings\Administrator>adb uninstall com.runbo.outdoormeter Failure [DELETE_FAILED_INTERNAL_ERROR] 再使用adb shell rm -rf data/data/com.runbo.outdoormeter/ 命令删除data/data/命令下该应用的相关文件 ? 1 C:\Documents and Settings\Administrator>adb shell rm -rf data/data/com.runbo.outdoormeter/ 删除后，再进行安装还是报相同的错误：Installation error: INSTALL_FAILED_UPDATE_INCOMPATIBLE，安装失败。使用adb reboot 命令重启后，再安装该APK，安装成功，如下所示：
? 1 2 3 4 5 6 7 8 9 10 [ 2015 - 12 - 28 16 : 12 : 41 - MainActivity] ------------------------------ [ 2015 - 12 - 28 16 : 12 : 41 - MainActivity] Android Launch! [ 2015 - 12 - 28 16 : 12 : 41 - MainActivity] adb is running normally. [ 2015 - 12 - 28 16 : 12 : 41 - MainActivity] Performing com.runbo.outdoormeter.MainActivity activity launch [ 2015 - 12 - 28 16 : 12 : 42 - MainActivity] Automatic Target Mode: using device 'QCS4BU6HY9C68LY5' [ 2015 - 12 - 28 16 : 12 : 42 - MainActivity] Uploading MainActivity.apk onto device 'QCS4BU6HY9C68LY5' [ 2015 - 12 - 28 16 : 12 : 46 - MainActivity] Installing MainActivity.apk... [ 2015 - 12 - 28 16 : 12 : 49 - MainActivity] Success! [ 2015 - 12 - 28 16 : 12 : 49 - MainActivity] Starting activity com.runbo.outdoormeter.MainActivity on device QCS4BU6HY9C68LY5 [ 2015 - 12 - 28 16 : 12 : 50 - MainActivity] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=com.runbo.outdoormeter/.MainActivity } 好吧，总结一下：第一步：先把原来已经存在的相同包名的APK删除，如：adb shell rm system/app/OutdoorMeter/OutdoorMeter.apk
第二步：将data/data/目录下该应用的包名的目录删除掉，如：adb shell rm -rf data/data/com.runbo.outdoormeter/
第三步：重启Android手机 adb reboot
第四步：再重新安装该APK
