Signatures of certificate is not generated after taking signed apk build

Hi Team,

I have running my project using cmd and always takes build through commands in ionic.

While taking signed apk, running jarsigner command is not generating the signature of certificate.

I am using PackageManager plugin to get the details of signatues.

But after getting the object from plugin signature value is empty.

Kindly suggest the solution to fix this build process issue.

K Mohammad Mujahid