问题
Unable to run apk on nexus 5 after upgrading to 5.1.1
Using Cordova: 5.0.0 Device : Nexus 5 Machine : MAC
BUILD SUCCESSFUL
Total time: 8.432 secs
Built the following apk(s):
/Applications/XAMPP/xamppfiles/htdocs/android/kaljacobs/platforms/android/build/outputs/apk/android-debug.apk
Using apk: /Applications/XAMPP/xamppfiles/htdocs/android/kaljacobs/platforms/android/build/outputs/apk/android-debug.apk
Installing app on device...
/Applications/XAMPP/xamppfiles/htdocs/android/kaljacobs/platforms/android/cordova/node_modules/q/q.js:126
throw e;
^
ERROR: Failed to launch application on device: ERROR: Failed to install apk to device: pkg: /data/local/tmp/android-debug.apk
Failure [INSTALL_FAILED_UPDATE_INCOMPATIBLE]
ERROR running one or more of the platforms: Error: /Applications/XAMPP/xamppfiles/htdocs/android/kaljacobs/platforms/android/cordova/run: Command failed with exit code 8
You may not have the required environment or OS to run this project
回答1:
I think you have this issue because the app is installed on your device with a different signature.
When you do cordova run android, the app is installed with a debug signature and maybe that signature changed when you changed target sdk or when you upgraded android.
The fix when you have INSTALL_FAILED_UPDATE_INCOMPATIBLE error is to first uninstall your app and then you should not have the issue any-more when launching cordova run android
回答2:
Don't worry about that.for NEXUS 5.go to Settings>> apps>> search application.
Well done..
来源：https://stackoverflow.com/questions/30502403/cordova-unable-to-install-apk-after-upgrading-android-to-5-1-1-nexus-5