jorgehcb
9/11/2018 - 1:04 PM

Android Emulator Installation error INSTALL_FAILED_VERSION_DOWNGRADE

adb -e uninstall your.application.package.name

adb_uninstall
content_copyfile_download
adb -e uninstall your.application.package.name

Or for a connected physical device, adb -s DEVICESERIALNUMBER uninstall your.application.package.name, 
where DEVICESERIALNUMBER can be found using adb devices -l