I want to provide an updated version to my app,
It is downloaded from my site not from google play service.
When I download the updated version its not replacing the old version, instead it shows error"An existing package by the same name with conflicting signature".
Is there any solution to replace the app without manually un-installing the older version from the device.
Every android application file – apk has two main things:
package name – (unique id of app like com.example.application)
signature
More information about the second. Every apk file should be signed with developer keystore. If this is the debug version it could be debug-keystore.
In this keystore there are some information about developer and other information.
When you install application android system at first checks package name – whether or not this application have been installed already. And if so system checks signatures. The signature of installed app and app to be installed must be the same. Otherwise you will get error, you describe in your question.
So, the answer is: not, you can't install another application with the same package name if the signatures of installed and to be installed apps are different.
You must uninstall previous version and install new version, if you need new version.
If That is Developed By You or a Developer.
Once Check weather the Entire Code and Package Names are Same or not, in the Manifest file..
If Its Not that app is not from you or your known developer means.
You need to Uninstall Previous Version and Install New One,
That Error You are Getting Is that App is Not Signed, means When we are Using UnSigned App It cannot Replace at the part of Signed app. first of all make your app as Signed.
Check more at Here
How to Make a App as self-Signed at here
Yes, the error message already describes your issue. Your issue is that your app is not signed with the same signature as the previous version.
So to prevent this error message you must sign the app with the same signature as the previous version.
More details about application signing can be found in the Android Developers documents.
to protect the identity of the application each revision(update) requires the same signed key(SHA1) which was used for the earlier release.
Eclipse by default uses debug-key to sign in all the packages.
Use the same method by which you first installed your app and everything should just work.
Related
I have an app, which I also have in the Google Playstore. I built this app on an old machine at the time and signed it there as well. Since I need to update the app, I pulled the code from my repo to my new machine (different Android Studio version). Likewise, I had saved the key for the signature and copied it to my new machine. I can also build the app with the signature. However, when updating on the phone, it keeps crashing. Android Studio tells me the following when I do this:
The device already has an application with the same package but a different signature.
The key, as I said, is actually the same for the siganture
How can I fix this? The app is used by multiple users through the playstore.
But I also need to have the possibility to update the app only via the APK (so not only from the store).
I want to run my application in phone but I get following message:
Installation failed with message:
INSTALL_FAILED_UPDATE_INCOMPATIBLE: Package signatures do not match
the previously installed version; ignoring!.
It is possible that this issue is resolved by uninstalling an existing version of the apk if it is present, and then re-installing.
WARNING: Uninstalling will remove the application data!
Do you want to uninstall the existing application?
In my phone I have installed previous version of app from google play. I know that uninstalling old version of app from my phone can fix the problem but I don't want to do this because then I might lose all app specific data.
What I tried:
generating signed version of app using the same keystore.jks like previously
changing versionCode and versionName in build.grandle file and then generating new version of app
And still I have the same problem. What should I do to update my app without losing data?
There are two possibilities I can think of
You use Google Play App Signing. If you use Google Play App Signing then the signature in apps coming from Google Play will always be different to the app coming from your IDE. The only way you can get the update to work is to update the app from Google Play. The best way to do this during development is to use an "Internal test track". Google launched these at Google I/O this year and they let you update your app in seconds from Google Play. So when you have an update, don't install from your IDE, upload to Google Play internal test track, republish, and then update from Google Play. It is really quick.
You don't use Google Play App Signing, but you are trying to install your debug build instead of your release/production build. Make sure you are building the production release APK, so it is signed with the same key as the one uploaded to Google Play.
If I'm understanding correctly you want to re install the "same" apk in your phone but with some changes in the code (updates) but Android Studio can't install the new apk.
I can only think in one thing, this is the explanation:
Please remember that android has different "Build Variants" there could be many but you will always have "debug" and "production" build variants, as I can read, you have installed the one in Play Store this means that you have a "production" build variant already installed in your phone, so you need a new "production" variant version of your app with the same build data (code and name version) and the updates in the code.
Build a signed apk with the same data as the previous version (code and name version) (Just like the one you used to upload to Play Store).
Find the signed apk.
Use adb to check your connected devices, expect a list
adb devices
Use adb to install this new apk.
adb -s <device_identifier> install <apk_name_include_apk>
Following those steps should let you install what you need.
Go in your React Native > Android >app
in the app folder,
you can see a build just delete this folder and Clear React Native project by npm cache clean cmd/Terminal Command.
Now try to run I hope it will Run for some of you.
It's working for me.
So I have an app on the Play Store that I released about a week ago. I've done a ton of work to to it since and I'm basically going to rebrand it a bit.
When I first released the app, I put it up on the app store with the name "First Name of App" (obviously not the correct name). I now have an update ready to publish with a lot of changes, and one change is that the app name is now "Second Name of App". It's all under the same package yet, I just changed the name using the Manifest.
I'm having an issue though with testing. Currently on my own phone, I have the version of the app that is currently on the Play Store installed.
I generated a signed APK using Android Studio (all with the same settings and key passwords and such). I then put that signed apk on my phone for testing, and when I try to install it I get the "App not installed" message.
Things I have tried:
Uninstalling the previous APK and then installing the newer version. If I uninstall the Play Store version first, and then install the newer signed APK version, it installs fine. The problem with this though is that I lose the data that I had in the Play Store version. I can't have that.
Changing the "versionCode" and "versionName" numbers in the build.gradle. I made sure both numbers are higher than what the Play Store version is, but I still get the same "App not installed" message.
Making sure the settings while generating the signed APK are the same. All of the settings are exactly the same. The signature version checkboxes are both checked yet also, as they were with all previous versions.
Anyone have any ideas what could be going on? I really would like to release this update but I'm afraid if I just upload this signed apk to the store that everyone would have the same issue, and that they'd be forced to uninstall the current version they have (resulting in data loss).
The problem seems that you are trying to install an APK with the same package name but different key and that creates a conflict. Android only considers an App to be the same if both package name and key signature are identical.
Keys are unique, even if you use the same settings and passwords each time you create a key a new unique key is created and it will be always different to the key you used in the Play Store release.
The only way to install the APK is to uninstall the Play Store version.
And that serves to emphasize how important it is to keep the key used in the Play Store, if you lose it you will not be able to upload new updates.
UPDATE
If your have "Google Play App Signing " activated for you app, the key used when an user installs the app from Play Store is different than the one you used to upload the release to the Play Console.
https://support.google.com/googleplay/android-developer/answer/7384423?hl=en
Have you by chance changed the minimum SDK version or anything like that? I've had a similar issue. I've an app on the PlayStore which I tried upgrading with an APK with the same signature as that of the PlayStore version but a different minimum SDK version. When I tried installing I get the 'app not installed' error. I then uploaded this APK on the PlayStore. On my device, the app on the PlayStore now shows two options 'Uninstall' and 'Open'. Due to your conflict, users will have to first uninstall the app and install it again. There will be no 'Update' option due to the conflict. Hope this helps :)
Similar Issue
Android Phone: Google Pixel3, Android 9
install youtube apk, but error:
Application Not Installed = App Not Installed
Final Solution
use adb's pm to install apk
even same error, but can show/known the fail reason
then can find specific solution to fix it
Examples
here later encounter many error cases:
blueline:/storage/emulated/0/Download # pm install /data/local/tmp/com.google.android.youtube_16.29.36.apk
pm install /data/local/tmp/com.google.android.youtube_16.29.36.apk
Failure [INSTALL_FAILED_VERSION_DOWNGRADE]
or:
blueline:/data/local/tmp # pm install youtube_16.29.36_addedDebuggable.apk
pm install youtube_16.29.36_addedDebuggable.apk
Failure [INSTALL_PARSE_FAILED_NO_CERTIFICATES: Failed to collect certificates from /data/app/vmdl445467286.tmp/base.apk: Attempt to get length of null array]
then google it and find specific solution to fix it, install apk successfully.
I have developed different versions of an android applications and exported them to my phone.I have renamed the different apk files like Myapp1.0.apk,MyApp1.1.apk etc.I have also given different names to all the apps.But whenever I am installing a specific version of the app,the previous version is getting automatically uninstalled.
I am confused what is uninstalling the earlier app version automatically??
Can anybody throw some light on this??
Android works by package name. If you install another app with the same package name, it replaces the previous app with that package name. Its how Android does updates. The name of the apk means nothing.
Also, if you try to install another apk with the same package name signed by a different key, it will fail due to security checks- so if you work with multiple people on the same app, you should share debug keys to prevent having to manually uninstall all the time.
Your package is probably the same in every version. This is what identifies your application in the android system. So the versions you install are just new version of the same app... and if you install a new version android automatically removes the old version.
Hope it helps.
the identity of an android application is it's application package. If you use a same package name then it will replace the existing apps. That's how the update of app works.
If you want to run two instance of same app in a device for some purposes, then just rename the application package and install.
I guess you are using the Same package Name for all the versions and in android you can't install two applications with same package try to change the package name and try to install it again hope this will work....
I have my application in Google Play, I've downloaded and installed it on my phone.
I'm also currently working on update of this application, and whenever I want to install my .apk file on my phone it shows me, that I can't do it, because the app is already here.
Where in Eclipse can I set some settings, which will allow me to install my updated app without installing original one?
EDIT
I want to have two versions on my device at the same time.
One simple solution is to change the package name, since that's how the OS identifies the .apk. Indeed, the package is unique to the Market: how does an android phone(or market) recognize an app
You can not install and run the app from eclipse because the app installed on the device (the one from play store) is signed with a different key.
When you export your app you sign the apk with a specific key and when u run it from eclipse you sign it with a different key - the debugkey.
If you HAVE to install another version on the device without uninstalling the old one from the device (the one you got from the play store) you should:
1.export your app and sign it with the same key you signed the app you uploaded to the play store.
2.upload the exported apk to the device.
3.install it.
EDIT:
If you want to versions on the same device you should change the app package name.