page_view.ex module PhoenixMaru.Router.Helpers is not loaded and could not be found

[peterwillcn]

==> phoenix_maru
Compiling 16 files (.ex)

== Compilation error on file web/views/page_view.ex ==
** (CompileError) web/views/page_view.ex:2: module PhoenixMaru.Router.Helpers is not loaded and could not be found
expanding macro: PhoenixMaru.Web.using/1
web/views/page_view.ex:2: PhoenixMaru.PageView (module)
(elixir) expanding macro: Kernel.use/2
web/views/page_view.ex:2: PhoenixMaru.PageView (module)
(elixir) lib/kernel/parallel_compiler.ex:117: anonymous fn/4 in Kernel.ParallelCompiler.spawn_compilers/1

[Cifer-Y]

@peterwillcn
What's your elixir version, maru version and phoenix version?