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Possible Duplicate:
Re-installation failed due to different application signatures

I ran a programs on my android device.Then i uninstall it.And again try to install it.But it shows this error after installing.

[2012-09-07 10:29:50 - EXT] Re-installation failed due to different application signatures.
[2012-09-07 10:29:50 - EXT] You must perform a full uninstall of the application. WARNING: This will remove the application data!
[2012-09-07 10:29:50 - EXT] Please execute 'adb uninstall com.excel' in a shell.
[2012-09-07 10:29:50 - EXT] Launch canceled!

Though the application does not exist in my device ,how can i uninstall the application. :(

Community
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MBMJ
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2 Answers2

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It is because another application is already installed in your device with same PackageName you using in current, So to get through just remove the application which having the same PackageName as yours.

Mohammed Azharuddin Shaikh
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  • No, i dont think so, see 'Then i uninstall it.And again try to install it.But it shows this error'. – Mohammed Azharuddin Shaikh Sep 07 '12 at 04:42
  • You are wrong.I change the package name.it does n't work,show the error i mention – MBMJ Sep 07 '12 at 04:47
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    @MBMJ you can Uninstall app using packagename see http://stackoverflow.com/questions/6591817/how-do-i-uninstall-an-existing-package-from-the-android-emulator, see your error line-3 1adb uninstall com.excel' which makes some sense, and I'm RIGHT. – Mohammed Azharuddin Shaikh Sep 07 '12 at 04:48
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Also , this error arrives due to, you already run the application with debug key through connecting your device to eclipse , and try to run the apk with released key in the same real device.

Shalini
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