paludis -ip world
Building target list...
Building dependency list...
Unhandled exception:
* In program paludis -ip world:
* When performing install action from command line:
* When executing install task:
* When adding PackageDepSpec 'virtual/baselayout':
* When loading VDB PROVIDEs map using '/var/db/pkg/.cache/provides':
* When parsing dependency string '':
* When handling lexer token '' (1):
* When parsing package dep spec '' with parse mode 'permissive':
* When splitting out category and package names from '':
* Name '' is not a valid qualified package name (paludis::QualifiedPackageName Error)