Route problem

none of my routes have that trailing forward slash 'admin/' unless :

Code:

$routes->get('productCat/(:segment)','Product::getCategory/$1');

it i guess could also be that if index method of Class Admin calls a view which doesn't exist ?

CMS CI4 A CMS system, runs out of the box written on top of CI4

Arch Book  CodeIgniter4 on Apache(pages 92-114) 

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