Play Store: Can't install app, (Error code: -103)

Question

Yesterday I published my app in Play Store. All went well till today. When I try to install my app from Play Store, it downloads it but when installing it it says:

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Answer 1

Older Android devices are unable to recognize SHA256 hash funcitons. Adding:

-sigalg SHA1withRSA -digestalg SHA1

as parameters to jarsigner should solve the issue even when using JDK 1.8.