https://issues.dlang.org/show_bug.cgi?id=17453
--- Comment #2 from Soar <your...@126.com> --- and other bugs. when i create a project,has myproject/core/exception.d directory and file hierarchy the VisualD will give me a error in the time.d because the std library of timd.d has import core.exception; . this is one. another is when my project has a file like myproject.d and im write a module in a file like "module winmain;" but i cant use any other like "module winmain.?" Error: module winmain from file winmain.d conflicts with package name winmain d:\Users\Soar\documents\visual studio 2015\Projects\myproject\myproject\winmain.d 1 --