I created an app that worked well in the emulator and in devices when tested. I then used the export option to generate a signed APK for release. But this APK is not installing and is showing the error message "unable to install" when installed from sd-card. The debug version works well. How should i proceed.
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2have you removed the debug version first? – WarrenFaith Jul 17 '13 at 15:26
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Does the error say anything other than "unable to install?" – Bryan Herbst Jul 17 '13 at 15:32
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yes thank's i removed the debug version and reinstalled the signed version and before that i cleared memory now it works. – user2591525 Jul 17 '13 at 15:32
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Once you have installed an app, you can not install another version of that app if it was signed with a different certificate. You will need to go to Settings and remove the currently installed version.
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