重新安装失败（是）软件包已存在

Question

So, I have an app which I am running on real device. When running the app the following dialog is shown.

Clicking Yes is followed by error in Console

- google-play-services_lib] Installation error! The package already exists.
- Launch failed on device:

I have tried uninstalling app from my phone but didn't work.

Any idea how to fix it?

Answer 1

That's caused by attempting to install an apk maybe from the ide with debug keystore on a device that has the production apk with the production keystore. Just go into the phones app settings and uninstall the app . I get a few of these after I test the upgrade path from the beta store and then go back to developing with the ide.

Answer 2

You dont need to reinstall google-play-services. It's updating automatically by Play Market. I had problems like yours and let me guess: when you debuging app from eclipse - google play services doesnt sign in, but when u release it and download from play market - it works fine. If its true, so mark your google-services as a library and delete from "java build path" in your app.

right click on project-> Properties -> Java Build Path -> Projects

Delete google-play-services from there

Now, you have to obtain debug certificate SHA1

1. in Eclipse go to Window->Preferences

2. Andoid->Build (there you can find debug certificate SHA1 for debuging)

   1. Go to Android Developper Console https://play.google.com/apps/publish
   2. Select your game in Play service
   3. Go to "linked applications"
   4. Create a NEW linked application android and put it your debug certificate SHA1
   5. Wait a few to changes be deployed

You will get two similar links, but with different SHA1 ( one for debugging, second for releasing)

Now, you need to clear the Android Application cache before trying to connect

1. Clear cache of your application
2. Launch your app

I solved my problem like this

Answer 3

try doing it through command prompt use:

adb uninstall PACKAGE_NAME

and see if it works

also try renaming the package name just to be sure.

I feel you are trying to install google-play-services.You don't need to update google play services.From the docs:

The Google Play services APK

The Google Play services APK contains the individual Google services and runs as a background service in the Android OS. You interact with the background service through the client library and the service carries out the actions on your behalf. An easy-to-use authorization flow is also provided to gain access to the each Google service, which provides consistency for both you and your users.

The Google Play services APK is delivered through the Google Play Store, so updates to the services are not dependent on carrier or OEM system image updates. In general, devices running Android 2.3 (Gingerbread) or later and have the Google Play Store app installed receive updates within a few days. This allows you to use the newest APIs in Google Play services and reach most of the devices in the Android ecosystem (devices older than Android 2.3 or devices without the Google Play Store app are not supporte