I’d like to publicate my app to GooglePlay but first i would like to do a last testing with the signed apk to ensure that all of the used API keys are working correctly with the release version (GMaps, Facebook, etc)
So i just made a signed version of my app with our release key and when i try to install the app to the device i got an error:
I have tried to copy the apk to the device and install it with an apk installer app.
Strange thing is when i do the same process with debug signing key, all is well, I can install and run the app.
Here are the steps of the procedure:
I select the release key, type password.
I do select release build type instead of debugging
Just in case i also defined in the gradle file the signing keys but I must admit i dont know is it necessary.
I tried like 7 seven times now so i assume this problem is not just a
mistyped password, also I can make this work with the standard debug android signing key.
Please help if you can.
You may be using the android 5.0 or above device.
Just go to the Settings –> Apps –> Click on your App. —> In App info page at the action bar menu there will be an option called ” Uninstall for All users ” click that. Your app will be completely uninstalled and now you can try installing the new version with no issue. Hope this will help you
Check my solution from below link.
Hope it will help you.
Updated Android Studio 2.3 users this answer is for you as hardly people use eclipse nowadays for Android development as Android studio has huge advancements.
So, Follow this way to create your
Signed apk file.
Password, alias, key password.
Build typeselect accordingly(eg to release in playstore use
Signature Versionselect both
- Go to from
explorerwhere you selected for the apk to store and you will see your
.apkfile name as
The same thing happened to me, as long as I generated my apk from Build> Build APK. I could install and un-install the apk as many times as they were without any problem, but instead if I generated the Build> Generate Signed APK, when I passed the apk to the phone and try to install it, it only allowed me one occasion, the same one that came out the following message:
until then everything was fine if I selected “INSTALL IN ANY WAY”, but what happened if I uninstalled the app and wanted to reinstall it (a possible scenario), the following happened:
so I solved the problem by disabling play protect, which I achieved (within Google Play)> Menu> Play Protect> Search for security threats (disable).
“App not installed” shows when an app with same package already installed in same device. just delete your first application which you were using for testing purpose before making it to signed apk. This will work. cheers!
Select both Signature Version v1 and v2 will resolve the issue
A JAR file can be signed by using the command line jarsigner tool or
directly through the java.security API. Every file entry, including
non-signature related files in the META-INF directory, will be signed
if the JAR file is signed by the jarsigner tool. For every file entry
signed in the signed JAR file, an individual manifest entry is created
for it as long as it does not already exist in the manifest
v1 signatures do not protect some parts of the APK, such as ZIP
metadata. The APK verifier needs to process lots of untrusted (not yet
verified) data structures and then discard data not covered by the
signatures. This offers a sizeable attack surface. Moreover, the APK
verifier must uncompress all compressed entries, consuming more time
and memory. To address these issues, Android 7.0 introduced APK
Signature Scheme v2
By default, Android Studio 2.2 and the Android Plugin for Gradle 2.2 sign your app using both APK Signature Scheme v2 and the traditional signing scheme, which uses JAR signing.
It is recommended to use APK Signature Scheme v2 but is not mandatory.
please see the details
In Android Studio 3.0 and Above
As described here
Note: The Run button builds an APK with testOnly=”true”, which means the APK can only be installed via adb (which Android Studio uses). If you want a debuggable APK that people can install without adb, select your debug variant and click Build Bundle(s) / APK(s) > Build APK(s).
android:testOnly="false" inside Application tag in AndroidManifest.xml
Here I resolved this issue
The reason behind this issue is, there is already an application with the same package name in the phone, but you cannot find it in phone menu(U already made the un-installation but actually its still in your phone).
To see the application go to phones SETTINGS -> APPS.
There you can see the application, but inside that the UNINSTALL button may be disabled. click on the menu overflow button to see Uninstall for all users.
After performed uninstalled for all users I have successfully installed my signed apk.
You can also use adb to uninstall the app from phone.
adb uninstall package name
In addition to this,
if your mobile supports multiple users then check if respective app is not installed for other users. If it is installed for others then first uninstall previous app and try again
It’s quite old question, but my solution was to change versionCode (increase) in build.gradle
That may because you run APK file from external SD card storage.
Just copy APK file into internal storagem problem will be solved
Go To Build.Gradle(module:app)
use this – minifyEnabled false
is the only that worked for me after 3 days of research on all forum!
This can happen due to your choice of the signature version. On some phones, installation errors occur if the signature version was selected as V2. So if that happens, try selecting V1, it will surely work.
I faced the same issue today, I remembered that I signed my apk with the “new” Google Play signing:
Make sure if you signed your application with Google Play signing.
If you did:
- Install an update by uploading your apk to Google Console (like you
usually would when updating your application):
- After it has successfully uploaded, open the
Artifact libraryin the menu.
- You will see the apk you have just uploaded.
- Press the download button and select
Download derived APK.
You will now be able to install the apk.
if Your Android Studio Version Greater than 3.0
Looks like we can not directly use the apk after running on the device from the build –>output->apk folder.
After upgrading to android studio 3.0 you need to go to Build -> Build Apk(s) then copy the apk from build -> output -> apk -> debug
File > Project Structure > Build Variants > Select release > Make sure ‘Signing Config’ is not empty > if it is select from the drop window the
I did this with Android Studio 3.1.4 and it allowed me to create a release apk after following all the steps above of creating the release apk and release key and adding the info to the app gradle. Cheers!
I was face same issue in my android application.
I did just update some library and then create sign APK. Now its work.
You don’t have to uninstall the Google Play version if App Signing by Google Play is enabled for your app, follow the steps:
1. Make a signed version of your app with your release key
2. Go to Google Play Developer console
3. Create a closed track release (alpha or beta release) with the new signed version of your app
4. You can now download the apk signed by App Signing by Google Play, choose derived APK
- Install the downloaded derived APK
The reason is App Signing by Google Play signs release apps with different keys, if you have an app installed from Play Store, and you want to test the new release version app (generated from Android Studio) in your phone, “App not installed” happens since the old version and the new version were signed by two different keys: one with App Signing by Google Play and one with your key.
android:testOnly="true" attribute from the AndroidManifest.xml worked.