first upload all files

Modules/Coupon/Routes/admin.php

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+<?php
+
+use Illuminate\Support\Facades\Route;
+
+Route::get('coupons', [
+    'as' => 'admin.coupons.index',
+    'uses' => 'CouponController@index',
+    'middleware' => 'can:admin.coupons.index',
+]);
+
+Route::get('coupons/create', [
+    'as' => 'admin.coupons.create',
+    'uses' => 'CouponController@create',
+    'middleware' => 'can:admin.coupons.create',
+]);
+
+Route::post('coupons', [
+    'as' => 'admin.coupons.store',
+    'uses' => 'CouponController@store',
+    'middleware' => 'can:admin.coupons.create',
+]);
+
+Route::get('coupons/{id}/edit', [
+    'as' => 'admin.coupons.edit',
+    'uses' => 'CouponController@edit',
+    'middleware' => 'can:admin.coupons.edit',
+]);
+
+Route::put('coupons/{id}', [
+    'as' => 'admin.coupons.update',
+    'uses' => 'CouponController@update',
+    'middleware' => 'can:admin.coupons.edit',
+]);
+
+Route::delete('coupons/{ids?}', [
+    'as' => 'admin.coupons.destroy',
+    'uses' => 'CouponController@destroy',
+    'middleware' => 'can:admin.coupons.destroy',
+]);