I have created an unsigned apk for my nexus 7. When I try and install it, the device pops up with, "App Not Installed". In the Eclipse emulator everything works fine. I have tried to alter my target to 4.2,4.3,4.4. Again, all work in the emulator but not on the device, the device is running 4.3.
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1Do you have Settings -> Security -> Device Administration -> Unknown sources checked? – laalto Dec 23 '13 at 09:58
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Yes I do have it checked – timeshift117 Dec 23 '13 at 10:00
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1Possible duplicate of ['App not Installed' Error on Android](https://stackoverflow.com/questions/4226132/app-not-installed-error-on-android) – rmtheis Nov 21 '17 at 00:00
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An unsigned application cannot be installed. You should sign it with jarsigner tool (provided by Android SDK tools)
The important points to understand about signing Android applications are:
- All applications must be signed. The system will not install an application on an emulator or a device if it is not signed.
See http://developer.android.com/tools/publishing/app-signing.html
nbe_42
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If it's working on your emulator, it's because Eclipse sign your application with a debug key. – nbe_42 Dec 23 '13 at 10:04
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1In the bin folder, the debug apk exists, there shouldn't be a problem with trying to install that on the device I'm guessing? – timeshift117 Dec 23 '13 at 10:06
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Just tried it, it worked, awesome. Not sure if there are any reason why one shouldn't use that method though. – timeshift117 Dec 23 '13 at 10:09
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Two ways to solve this
1.Signing the apk (which is preferable)
2.Take apk from bin instead of taking unsigned then instead of replacing the app, un-install existing app and install it
Kalanithi Elangovan
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