VS2010 shows this is the output window:
Creating Rails app RoR in D:/delete/RoR ...
Installing missing gems: rails (3.0.1), activerecord-sqlserver-adapter (3.0.2)
can't convert NilClass into String
WARNING: You don't have C:/Users/pb/.gem/ironruby/1.9.1/bin in your PATH,
gem executables will not run.
can't convert NilClass into String0 gems installed
In the file system, the only file created is the solution (.sln) file