Ebuild 9.9.9 has a missing or malformed copyright/licensing header.
[Error] Ebuild 9.9.9 uses an obsolete EAPI '0'. EAPIs 0 to 4 are obsolete and must no longer be used.
[Notice] Ebuild 9.9.9 has an invalid header. It should start with a valid copyright line (e.g., '# Copyright YEARS MAIN-CONTRIBUTOR') and the GPLv2 distribution text followed by an empty line.
[Error] Ebuild 9.9.9 does not specify LICENSE
[Warning] Ebuild 9.9.9 is missing HOMEPAGE
[Error] Repository is missing a repo-name in metadata/layout.conf or profiles/repo_name
[Error] Invalid or missing metadata.xml: file does not exist