Android Emulator Installation error INSTALL FAILED VERSION DOWNGRADE

Question

I am currently trying to compile and test a small Android Application   I am using Eclipse  and have SDK 4 2  Api Level 17  installed   I ve set    lt uses-sdk android targetSdkVersion  17  android minSdkVersion  8    gt    although I ve tried also different values  i e  17 17    I do not use any GoogleAPI functions  nor do I use functions that are not available in API Level 8  Or at least I do not get any compile errors or warnings in that regard   When I compile the project and run it on a real device running Android 2 2 1 the Application runs fine  However when I try to run the application on an emulator  Android Virtual Device  with Android 4 2  Api Level 17 I get the following error    2012-12-10 21 10 29 - SoftKeyboard  Installation error  INSTALL FAILED VERSION DOWNGRADE  2012-12-10 21 10 29 - SoftKeyboard  Please check logcat output for more details   2012-12-10 21 10 29 - SoftKeyboard  Launch canceled    Logcat however is empty  I have really no clue  what this error even means

User · Answer

This was happening in my project because I was using an XML resource to set the version code.

AndroidManifest.xml:
android:versionCode="@integer/app_version_code"

app.xml:
<integer name="app_version_code">64</integer>

This wasn't a problem in prior versions of adb, however, as of platform-tools r16 this is no longer being resolved to the proper integer. You can either force the re-install using adb -r or avoid the issue entirely by using a literal in the manifest:

android:versionCode="64"

User · Answer

INSTALL FAILED VERSION DOWNGRADE   All Android apps have a package name  The package name uniquely identifies the app on the device  If same packageName as app that s already installed on the device then this error Showing     You can  uninstall the application from your device first and then install the fresh one   You could simply increase the number by one each time a new version is released

User · Answer

It may be a problem with the Google Play Services dependencies rather than an actual app version issue   Sometimes  it is NOT the case that   a  there is an existing version of the app installed  newer or not b  there is an existing version of the app installed on another user account on the device  So the error message is just bogus   In my case  I had   implementation  com google android gms play-services-maps 16 0 0  implementation  com google android gms play-services-location 16 0 0  implementation  com google android gms play-services-gcm 16 0 0    But when I tried  implementation  com google android gms play-services-maps 17 0 0  implementation  com google android gms play-services-location 17 0 0  implementation  com google android gms play-services-gcm 17 0 0    I got androidX related errors  as I had not yet upgraded to androidX and was not ready to do so  I found that using the latest 16 x y versions work and I don t get the error message any more  Furthermore  I could wait till later when I am ready  to upgrade to androidX   implementation  com google android gms play-services-maps 16    implementation  com google android gms play-services-location 16    implementation  com google android gms play-services-gcm 16

User · Answer

I was having same problem  I was getting error when i tried to run in my android device not emulator   sudo ionic run android    I am able to fix this by running   adb uninstall com mypackage name

User · Answer

you can try this  adb install -r -d -f your Apk path

User · Answer

It means you re trying to install an app with the same packageName as an app that s already installed on the emulator  but the one you re trying to install has a lower versionCode  integer value for your version number    You might have installed from a separate copy of the code where the version number was higher than the copy you re working with right now   In either case  either    uninstall the currently installed copy or open up your phone s Settings   Application Manager to determine the version number for the installed app  and increment your  lt manifest android versionCode  to be higher in the AndroidManifest  or https   stackoverflow com a 13772620 632951

User · Answer

You can also consider adding -d flag to adb install  It should ignore this error   adb install -r -d abc apk

User · Answer

This can happen when trying to install a debug unsigned APK on top of a signed release APK from the Play store   H   gt adb install -r  Signed apk  2909 KB s  220439 bytes in 0 074s          pkg   data local tmp Signed apk Success  H   gt adb install -r  AppName apk  2753 KB s  219954 bytes in 0 078s          pkg   data local tmp AppName apk Failure  INSTALL FAILED VERSION DOWNGRADE    The solution to this is to uninstall and then reinstall or re run it from the IDE

User · Answer

First uninstall your application from the emulator   adb -e uninstall your application package name   Then try to install the application again

User · Answer

Just uninstall the previous Apk and install the updated APK

User · Answer

I was having the same problem  I installed with     adb shell pm install --user  lt userId gt  test apk  For some reason  there was no icon on the screen  It was a debug build and all other consecutive installs were not working  Simply uninstalling the package helped       adb uninstall com package name

User · Answer

the thing that kept on killing me was that i didn t know that this app was installed for my guest account  although I had uninstalled it for the other accounts     so i searched for the app in the app manager  and simply clicked on uninstall for all users

User · Answer

This error appears in my android project with multiple kind of gfx files  At the end no change in the manifest file was accepted   Because my lack of knowledge about the android devices I forget that my test device has a second User  This User also has an installed version of my app so I also have to delete the app for this user account and it works

User · Answer

In Marshmallow  I got this error    Installation error  INSTALL FAILED PERMISSION MODEL DOWNGRADE Please check logcat output for more details  Launch canceled    Looking for solution I searched and came here   I deleted the app but still have this problem in Nexus 6  Later found that in    Settings  gt  Apps  gt   My app name  have to removed for all user

User · Answer

According to sdk src code from     android-22 android content pm PackageManager java         Installation return code  this is passed to the   link IPackageInstallObserver  by      link  installPackage android net Uri  IPackageInstallObserver  int   if    the new package has an older version code than the currently installed package      hide     public static final int INSTALL FAILED VERSION DOWNGRADE   -25    if the new package has an older version code than the currently installed package

User · Answer

this happened to me when I imported an Android Studio App into eclipse   I figured out the andoridmanifest xml file needs to be slightly modified when importing from android studio project  I created a new test project  and copied over the headings to make it match  voila  issue solved

[java] Android Emulator: Installation error: INSTALL_FAILED_VERSION_DOWNGRADE

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