[Error] Ebuild media-plugins/vapoursynth-histogram/vapoursynth-histogram-9999-r1.ebuild inherits eclasses conditionally, which is not permitted. All eclass inherits must be unconditional.
[Warning] Ebuild 9999 has a line exceeding 80 positions on line 19.
[Error] Ebuild 9999 KEYWORDS is defined multiple times. It must be defined at most once.
[Error] Repository is missing a repo-name in metadata/layout.conf or profiles/repo_name
[Notice] Package has only unstable keywords for arch(es): [ amd64, x86 ], all versions are unstable: [ 2 ]
[Error] Missing or unparsable Manifest file
[Error] Invalid or missing metadata.xml: open media-plugins/vapoursynth-histogram/metadata.xml: file does not exist