I made an app for android but needed to move to another pc due to hardware failure. Now, the question pops up from android studio that an app with the same package name is on the tablet, but a different signature, and ask to uninstall. Uninstall fails however because the app is device owner to implement kiosk mode ( pinned mode in android terms ).
So, I'm stuck. Why is the signature different while the project is exactly the same ?
Copy your keystore form your pc to other pc .
KeySotre path C:\Users\{username}\.android\debug.keystore
When you run your project in android studio it generates default hash for debug mode, and APK installed on your device is generated with a different hash so it prompts you.
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i want to move my android studio project to another pc but when im moving files from pc one to pc two and i'm trying to run the same app it's not launching and asking to remove old(the same package) app, but i want to save app signature how can i do it? for example i want to work at home, after i'm going to work and continue my project at work is it possible and how? and yes, sorry for my bad english...
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but i want to save app signature how can i do it?
Each Android Studio installation will generate its own debug keystore for signing a debug apk. Quoting from the documentation on app signing:
"The first time you run or debug your project in Android Studio, the IDE automatically creates the debug keystore and certificate in $HOME/.android/debug.keystore, and sets the keystore and key passwords."
Apps signed with a different debug key are perceived to be different apps. So you need to copy one of the debug keystores to the $HOME/.android/ folder on the other development machine.
Download GitHub desktop and sign up. Then create repository and push project in repository. At the work in Android Studio go to File -> New -> Import Project and past a link to created repository.
https://desktop.github.com/
To see how to transfer the debug.keystore that is required so you don't get the message "The device already has an application with the same application but a different signature. In order to proceed you will have to uninstall the existing application." (and lose your data). See Update the app in another machine with same debug.keystore in android
I have an old app that I've written for personal use only, and never made as release to the Play Store. I installed it to my phone via Android Studio using run app command.
Many years later I want to modify the app, I try to pick up the app and run it again, this time using a different computer. I get the error saying:
"Installation failed since the device already has an application with the same package but a different signature. In order to proceed, you have to uninstall the existing application."
I definitely don't want to uninstall my app, this would cause me lost all the data I've entered to it. So I want to ask that isn't the debug keystore used by Android Studio to install app on device would create app of the same signature? Why it would be different? Is a different machine caused this issue? Thank you very much!
It sounds like you were using your debug certificate when you originally installed the app. This is unique to each machine when you install Android Studio.
You can copy the debug certificate from your old machine to your new one.
The file is located in your [userhome]\.android\debug.keystore
I have tested an Android application by connecting my PC to my smartphone ARCHOS Diamond. With Eclipse, from Java program including JavaFX, I can generate an .apk file by executing the install Gradle task.
But, this .apk is dedicated to my phone
Now, I want to spread my application on other Android phones. But I don't want to get as many kinds of phones for generating their .apk.
How can I do to generate .apk dedicated to HW and Android versions, without having these phones?
And, if it possible to generate them, how to be sure that these apk work fine?
Thanks
If you are using the Eclipse plugin.
Right click on the project > Android Tools > Export Signed Application Package
Follow the instructions for creating a .keystore file and you're sorted!
I am developing an app from two different workspace on two different PCs.
Code is shared with git.
Problem is - when I build an install the apk on my mobile (htc one m8) PC 1 and then continue on PC 2, deploy the apk, I cannot install it on this same mobile. I get an error that says that an app in with the same package alreasdy is installed, but the signatures do not match.
I could certainly uninstall the app, then reinstall - but since I use databases, the uninstall would erase that data.
Is there a way to use the same signature on both PCs?
I use Eclipse with ADT and GenyMotion.
You can use the same signature on multiple computers by copying the debug signing key between the computers (or including it in source control).
You can then set Eclipse to use that keystore for debug builds by opening the Preferences > Android > Build menu.
I'm using Eclipse to develop an app and I have two computers (a desktop and laptop) that I want to use to develop this app. I recently set up my laptop with Eclipse and imported the project over to that computer. However, I realized that I can't launch the application from my laptop onto my phone because the signature that is automatically generated when I build the app from my desktop doesn't match the one that is automatically generated on the laptop; unless I uninstall it on the phone. Does anyone know how to export the automatically generated signature from one Eclipse and import it into another?
Window -> Preferences |-> Android -> Build:
refer to your custom debug key store, (I copied mine from the C:\Users\${UserName}.android\debug.keystore) which I would put in something like drop box.
The automatically generated key is called the debug key/certificate.
You should generate a new key can just copy it over to both your devices. The only negative of this is your builds process is longer as you need a manual steps.
The other option is to copy over the debug key from one of the systems.
You will find the keys in a folder names .android in your home directory in Linux & user directory in Windows
Tip: Never loose the certificate once you push an app to the market.