Collectives on Stack Overflow. Learn more. Update already installed android application gives error "an existing package by the same name with a conflicting signature is already installed" Ask Question.
Asked 6 years, 11 months ago. Active 6 years, 2 months ago. Viewed times. It was great, I made changes in the project and generated and distributed Apk several times in But Few day ago when I made some changes and rebuild project I did not use signed apk ever.
And try to install apk on device where I have application installed already , then it gives me error while updating: an existing package by the same name with a conflicting signature is already installed I have tried everything, I never generated apk using any signature never create or used any keystore. I need to update all 15 devices application. How can I make a new apk with old apk signature? Arry Arry 19 5 5 bronze badges. You could try installing the release-apk from the project folder which is an unsigned version if I'm not mistaken of your apk.
Add a comment. Active Oldest Votes. Hey MD Sorry i am just a novice in android development , how can i do that? Add a comment. Active Oldest Votes. I had to swipe over from "Downloaded" to the "All" list to find it in the Apps list. As you mention, make sure you scroll all the way down to the bottom - the "not installed" apps are not listed in alphabetical order.
This was also my problem after lending my test Nexus 7 to a friend. Thought my keys were corrupted I deleted that user just to reduce future confusion. Saved my time. I had to login in all users and uninstall 1 by 1. Show 9 more comments.
Hope this Helps Martin Cazares Martin Cazares The emulator should then download the other non dev signed apk and try to do the upgrade. If this works, I'll accept your answer. Thx — James Oravec.
MartinCazares is there anyway to get the apk key? Well, if you installed the app, you should have the key, otherway how would you sign the apk? If the previous apk was not created by you, then you need to ask to the developer of that apk for the key, other than that there's no way to get the key that was used to sign an apk Thank so much for this!
You saved my day and my team! Haha — perozzo. I have an application in LIVE in playstore, now I kept installed that app in testing device and now For updating newer version of app I'm updating "versionno" and "versionname" in app build. Now I have made an release build with signed key, now while im trying to install that build in it through an error An existing pacakage by the same name with a conflicting signature is already installed.
And not getting installed too. Kindly help. Keshav Gera Keshav Gera 9, 1 1 gold badge 63 63 silver badges 46 46 bronze badges. This helped me - thanks. For some reason I had two version of my app appearing there even after deinstalling it through my home screen. Santiago Santiago 7 7 silver badges 11 11 bronze badges. Thanks alot Santiago,last day i changed my machine hard drive from mechanical drive to the Solid State drive therefore i need to upgrade my Windows,i was facing the same issue then i copied the debug.
Thanks for the answer, because it actualy solved my problem, I am programming with a friend and we had this problem frequently, now that we are sharing the debug key, everything is fine.
Avijit Avijit 1, 11 11 silver badges 20 20 bronze badges. I'll make an unsigned apk and download the unsigned apk and see if that solves it, if it does then I can test the signed apks with hardware. I'll accept the answer if this is the case.
When I did the unsigned app install I simply get app not installed. I checked the emulator settings and it has Allow installation of apps from unknown sources checked. So this does not seem to be the solution. It seems that in the new Google Play system when you upload an app they created a new keystore specifically for Google Play and embed that keystore to the APK. Please correct me if I'm wrong. Add a comment.
Active Oldest Votes. It's not test build in my device installed app from play store. You can use adb command to simulate the scenario. Sagar Sagar I have not tried this command but tried installing from android studio too.
Dilip Just try out this command — Sagar. Dilip looks like you are installing apk signed with different signature. Are you sure you are building release apk correctly? I have uploaded build in beta and i can test update there — Dilip. Show 3 more comments. The Overflow Blog. Podcast Making Agile work for data science. Stack Gives Back
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