Already up to date. ==> Making package: php-pear 1:1.10.19-3 (Mon Apr 19 01:52:57 2021) ==> Checking runtime dependencies... ==> Checking buildtime dependencies... ==> Retrieving sources... -> Found install-pear-nozlib-1.10.19.phar -> Found install-pear-nozlib-1.10.19.phar.sig ==> Validating source files with sha256sums... install-pear-nozlib-1.10.19.phar ... Passed install-pear-nozlib-1.10.19.phar.sig ... Skipped ==> Verifying source file signatures with gpg... install-pear-nozlib-1.10.19.phar ... FAILED (unknown public key 72A321BAC245F175) ==> ERROR: One or more PGP signatures could not be verified!