Hi, Kamil, Michal If open VS Integration project - Nemerle.VSIP\Nemerle.Compiler.Utils\Nemerle.Compiler.Utils.nproj) under VS Integration in lines 243, 286 of http://nemerle.org/svn/vs-plugin/trunk/Nemerle.Compiler.Utils/Nemerle.Comple tion2/CodeModel/Checker.n you will see errors. It's phantoms. Please, help fix it.