2014. 8. 27. 12:38ㆍPrograming/Debugging
[2014-08-27 12:30:53 - TechListChooserActivity] Installation error: INSTALL_FAILED_VERSION_DOWNGRADE
[2014-08-27 12:30:53 - TechListChooserActivity] Please check logcat output for more details.
[2014-08-27 12:30:53 - TechListChooserActivity] Launch canceled!
t means you're trying to install an app with the same packageName as an app that's already installed on the emulator, but the one you're trying to install has a lower versionCode (integer value for your version number).
You might have installed from a separate copy of the code where the version number was higher than the copy you're working with right now. In either case, uninstall the currently installed copy, or open up Settings > Apps to determine the version number for the installed app, and increment your versionCode to be higher in the AndroidManifest.
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