Route edit,show and delete not working using laravel 5.7 - laravel-5.7

Question

Page not found all I get when trying to get these pages.
web.php looks like this
Route::resource('admin/roles', 'RoleController');
route:list look like this
| GET|HEAD | admin/roles | index | App\Http\Controllers\RoleController#index
| GET|HEAD | admin/roles/create | create | App\Http\Controllers\RoleController#create
| PUT|PATCH | admin/roles/{} | update | App\Http\Controllers\RoleController#update
| GET|HEAD | admin/roles/{} | show | App\Http\Controllers\RoleController#show
| DELETE | admin/roles/{} | destroy | App\Http\Controllers\RoleController#destroy
| GET|HEAD | admin/roles/{}/edit | edit | App\Http\Controllers\RoleController#edit
Controllerlook like this
public function show($id)
{
$role = Role::find($id);
return view('admin.roles/show')->with('role',$role);
}
public function edit($id)
{
$role = Role::find($id);
return view('admin.roles.edit')->with('role',$role);
}

Answer 1

You should try navigating your browser to admin/roles/1 instead of admin/roles/show/1. The route you've tried doesn't exist so you're correctly getting a 404 error.
Since the create and index page work fine, but not show I think there is something up with the route bindings.
Since the routes in route:list command show admin/roles/{}, it makes me think laravel couldn't figure out the bindings.
My best guess for this it to check the http kernel. You should have the \Illuminate\Routing\Middleware\SubstituteBindings::class middleware either in the $middleware array or inside the web group under the $middlewareGroups array. I suggest putting it in the web middleware group.
eg:
protected $middlewareGroups = [
//
'web' => [
\Illuminate\Routing\Middleware\SubstituteBindings::class,
],
//
];
Another suggestion:
Try defining the routes individually instead of using Route::resource()
Route::get('admin/roles', 'RoleController#index');
Route::get('admin/roles/create', 'RoleController#create');
Route::patch('admin/roles/{role}', 'RoleController#update');
Route::get('admin/roles/{role}', 'RoleController#show');
Route::delete('admin/roles/{role}', 'RoleController#delete');
Route::get('admin/roles/{role}/edit', 'RoleController#edit');
Note you may need to add ->name('some-name') to fix the names