portaltransforms-1.0.2.ebuild and portaltransforms-1.0_alpha3.ebuild contain the following: src_install() { dodoc ChangeLog README TODO dodoc docs/*.rst dohtml docs/*.html S=${S}/build dobin build/scripts/transform S=${S}/build/lib/Products zproduct_src_install all into / } But {S}/build/lib/Products does not contain all the files that are needed for the product to function correctly Zope. In particular, "zope", "skins" and "www" are missing. I altered the ebuild so that everything under ${S} got copied.
thx for pointing that out, fixed in -r1