Yes, I use "clean compile" Alexander do you speak Russian? For me it easier to write in Russian. In the proporties of project I have changed the path for vision2_pre. An error is the same, but the path is new. May be I need to copy any files to this directory? Thank you for your answers! Error Configuration error: precompiled directory/file is unreadable. What to do: make sure that the directory/file exists and that appropriate permissions are set ("read" for files, "read/execute" for directories). Directory: f:\projects\eiffel\eiffel user files\7.0\precomp\spec\windows\EIFGENs