android - tools - Installation error: INSTALL_FAILED_UID_CHANGED no root

how to install android sdk in eclipse (14)

  1. Go to Run/debug configurations.
  2. Under Android App delete "app".
  3. Then add another configuration under module: app

I have checked all the solutions, comments and answers of all other questions in StackOverflow.

I have been running, compiling and debugging my app for months. But suddenly it started to appear this message in my Eclipse when using my Nexus to play with it.


  • I have no root !!! (It's a Nexus, and I have no root, and all the answers in other Stackoverflow's questions need root to be executed)
  • The application is uninstalled, there's no trace of it in "Applications"
  • Since I don't have root access, I can not access to /data/data folder, or /data/local, or /data
  • I do know problem would be solved resetting the phone to factory settings, but, sincerely, I can not.


  • I have cleaned the project many times, restart Eclipse and even update it
  • I can not change the name of the project (as one solution suggests), since it's a long time project and I can not change it
  • Console says:

    • Installation error: INSTALL_FAILED_UID_CHANGED
    • Please check logcat output for more details.
    • Launch canceled!
  • Logcat says:

    • 01-05 12:18:19.265: W/ActivityManager(761): No content provider found for permission revoke: file:///data/local/tmp/MyApp.apk
    • 01-05 12:18:20.855: W/PackageManager(761): Package couldn't be installed in /data/app/com.myapp-1.apk
  • I can install, uninstall other APK/applications with no problems at all. So it's not about permissions in /data folder/subfolders


  • If I try to uninstall (with -d or any other parameter) the app it says: "Failure" (because adb does not find the app in the phone)

So, I'm not debugging with virtual machine / emulator. I have a Nexus no-rooted with no trace of the application, and I can not build the app from Eclipse to the device.

Thank you

Downloading app from play store will resolve the issue. To continue development on the app, uninstall the currently installed app and just launch the app from eclipse.

It works fine.

For no root Device you need you need to delete the app from the app list in the device:

  1. go to "settings"
  2. go to "storage"
  3. on third tab "downloaded apps" locate your app
  4. you can delete it from there

Works for me!

For android studio go to File-> Project Structure -> app -> Flavors and your right side you will see Application Id field just change Application Id and you are ready to go... :)

Here are some other things to check/try that are safe to do:

  • Make sure your package name is 100% unique and not colliding with another app. You could temporarily change it to test.
  • Try powering your phone off and then back on to clear data caches.
  • Try a soft reset for your device (which might be the same as powering off/on).

I can solve this like below without rooting on my Nexus 5.

  • Push your app to /sdcard/
  • adb push test.apk /sdcard/
  • adb shell
  • adb shell pm install -l /sdcard/test.apk

-l option means - pm install: installs a package to the system. Options: -l: install the package with FORWARD_LOCK.

I had the same issue in my non-rooted Nexus 5. I managed to solve it without root access nor Factory reset.

For this device, I managed to solve it by going to Settings -> Storage -> Misc and try to delete any files related to the faulty app (in my case, an .apk that was pushed from Android Studio and a .db file). I also clicked on Cached data to wipe the cache for all apps.

I don't know exactly which of the two things triggered the solution. You probably want to try to delete some files in Misc before wiping the cached data, since it seems less of an overkill.

It seems to be that there were some remaining files from a previous installation which weren't wiped with the uninstall (probably an issue in the Android installation system). These files aren't accessible without root access, since they are under the /data/local/ folder. Apparently the Storage tools for the Nexus 5 have permission to delete files under that folder.

I don't know whether other devices have a similar set of storage tools.

I had this exact same problem. What finally worked for me was to change the applicationId (your package name) in build.gradle to something different, then rebuild the project, and voilà, successful deployment.

What led to this situation was that I'd copied an existing Android Studio project into a new one, and was working off of that new one. The thing is, I'd never deployed the original apk on my device before, and was only trying to deploy the new copy of the app.

I was using a device that was just for testing, so I just reset the whole device. It worked for me anywho.

In my case changing the package name of the GCM signature worked. since it uninstalls the complete package.

For more detailed explination click here

   <uses-permission android:name="com.androidcodelab.sampleproject.permission.C2D_MESSAGE"/>

Package name of the project changed to :


    <uses-permission android:name=""/>

and then I reverted back to the actual package name

This is because of if you have install the app with same package name. So try to remove that one.

This may seem odd, but my pointy-haired boss just had this issue and tried everything we could think of. Just would NOT install due to the INSTALL_FAILED_UID_CHANGED error.

He uninstalled some other apps (games) and suddenly it would install. Maybe it is an issue of disk space on internal card? Dunno, but worth a try when someone else hits it.

This worked for me:

adb install -l -r <'apk_name'>.apk

-l = forward lock

-r = reinstall

Try deleting Cached Data under Settings -> Storage, this will clear all cached App data at once, but it does the job (in my case)