std.stream.file at stream.d conflicts with std.stdio.file at std\stdio.d
Comment #1 by schveiguy — 2015-11-13T13:40:40Z
While this may seem harsh, this is just the way things are, and they likely won't be fixed, as fixing this would break much more code.
However, you can rename imports or identify your symbols by using the fully qualified name, see http://dlang.org/module.html#ImportDeclaration