CodeIgniter HMVC网址与Twig模板无法正常工作

I have a CodeIgniter 3.1 with HMVC extension, im using Twig as a template engine.

My problem is all my urls in the views inside the Modules return a strange value.

Example:

In the Module/views/admin_template.html.twig i call a controller from the Dashboard module

<a href="{{ base_url() }}{{'dashboard/index'}}">

this should be returning

http://mysite.dev/dashboard/index

instead is returning

http://mysite.dev/Template/mysite.dev/dashboard/index

I changed <a href="{{ base_url() }}{{'dashboard/index'}}">

to

 <a href="{{ base_url }} {{ '/dashboard/index' }}">

and now it's working fine