I think the output is clear enough. # emerge -uDva world !!! Multiple versions within a single package slot have been !!! pulled into the dependency graph: ('ebuild', '/', 'dev-scheme/guile-1.6.8', 'nomerge') pulled in by ('ebuild', '/', 'dev-scheme/slib-3.1.4', 'nomerge') ('ebuild', '/', 'dev-scheme/guile-1.8.1', 'merge') pulled in by ('ebuild', '/', 'app-office/gnucash-2.0.2', 'nomerge')
*** This bug has been marked as a duplicate of bug 1343 ***
*** Bug 163904 has been marked as a duplicate of this bug. ***
*** Bug 166006 has been marked as a duplicate of this bug. ***
*** Bug 166107 has been marked as a duplicate of this bug. ***