INSTALL_FAILED_SHARED_USER_INCOMPATIBLE while using shared user id

I am working on Android application which will share the database. For that, I'm using android:sharedUserId in both application's Manifest file. When I am trying to run the application after adding that sharedUserId it shows me following errors in console.

[2013-03-04 19:37:32 - MainActivity] Installation error: INSTALL_FAILED_SHARED_USER_INCOMPATIBLE
[2013-03-04 19:37:32 - MainActivity] Please check logcat output for more details.
[2013-03-04 19:37:32 - MainActivity] Launch canceled!

Please help me to resolve this problem.

Solution 1:

I followed these steps:

1. Removed existing application (if it is already installed )
2. Removed share user ID from android manifest
3. Bulid the application.
4. Now enter share user ID again
5. build the application 1 more time

Solution 2:

This means something about your app was not correctly uninstalled. This steps help to force uninstall from internal commands:

1. Connect your phone to PC with usb
2. From your shell launch:

    $ adb shell
    shell@android:/ $ su
    shell@android:/ # pm list packages | grep <part of package>
    package:com.android.providers.applications
    package:com.android.providers.calendar
    package:com.android.providers.contacts
    package:com.android.providers.downloads
    ...
    shell@android:/ # pm uninstall <package>
    shell@android:/ # exit
    shell@android:/ $ exit
    $

Basically, you log into android shell, become superuser, find problematic packages, and uninstall it

Solution 3:

In my case, the two app was signed with differents signatures. Using the same signature fix my problem

Solution 4:

The solution for me was to select the "Build > Clean Project" menu option. It took a long time but the application deployed once it was complete.