Published Android apk gives error “Package file was not signed correctly”

Question

I recently uploaded my application to the android market however it\'s refusing to run when downloaded due to the error

Package file was not signed co

Answer 1

Recently, I signed my apks from the command line and got this error. I solved this error through the instructions in this link:

http://developer.android.com/tools/publishing/app-signing.html

$ jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore my-release-key.keystore my_application.apk alias_name