android - When I try to install signed apk then it give me error "Application not installed" -


i running app on devices android studio direct working fine. have uninstalled unsigned apk application manager. when trying install signed apk sd card give me error "application not installed". device android version 6.0.1. not sure what's problem. tried every thing same problem. please me out , in advance.

  1. change application package name my.app.pack my.app.pack.1
  2. remove application/photos increase memory.

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