If I want to export any game to android, this error show up and I down't know what I can do to fix this. My game has no assets. I copied my valid certificate from "https://repo.maven.apache.org/maven2/" and imported it in "jre1.8.0_271/lib/security\cacerts" but nothing has changed.
This jar contains entries whose certificate chain is invalid. Reason: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
This jar contains signed entries that are not signed by alias in this keystore.
This jar contains entries whose signer certificate is self-signed.
This jar contains signatures that do not include a timestamp. Without a timestamp, users may not be able to validate this jar after any of the signer certificates expire (as early as 2048-03-13).
Re-run with the -verbose and -certs options for more details."