Unhandled exception:
* In program paludis -pi world:
* When performing install action from command line:
* When executing install task:
* When adding PackageDepSpec 'virtual/baselayout':
* When checking mask reasons for 'virtual/baselayout-1.13.0_alpha12::virtuals'
* When checking mask reasons for 'sys-apps/baselayout-1.13.0_alpha12::gentoo'
* When querying repository mask for 'sys-apps/baselayout-1.13.0_alpha12':
* When parsing package dep spec '>=kde-misc/krusader-1.80.0_beta1.ebuild':
* When parsing version spec '1.80.0_beta1.ebuild':
* Name '1.80.0_beta1.ebuild' is not a valid version spec (paludis::BadVersionSpecError)