Illuminate\Contracts\Container\BindingResolutionException Target class [app\Http\Controllers\FrontEnd\IndexController] does not exist

Question

**Target class ** does not exist. ?? Why I didn't understand

Error Is lluminate\Contracts\Container\BindingResolutionException Target class [app\Http\Controllers\FrontEnd\IndexController] does not exist.

Illuminate\Container\Container::build C:\xampp\htdocs\check-time.com\vendor\laravel\framework\src\Illuminate\Container\Container.php:875

I am Using Laravel 8. Environment information Laravel version 8.47.0 Laravel locale en Laravel config cached true PHP version 8.0.6

 <?php
     namespace App\Http\Controllers\FrontEnd;
    use Illuminate\Http\Request;
    use App\Http\Controllers\Controller;
     class IndexController extends Controller
    {
        public function UserGuide(){
    
            return view('FrontEnd.FrontWeb.User-Guide');
        }
        public function About(){
    
            return view('FrontEnd.FrontWeb.about');
        }
        public function Download(){
    
            return view('FrontEnd.FrontWeb.download');
        }
        public function ContectUs(){
    
            return view('FrontEnd.FrontWeb.contact-us');
        }
       }

Here is My Web.php Route

<?php

use Illuminate\Support\Facades\Route;
use app\Http\Controllers\Controller;
use Illuminate\Support\Facades\Auth;
use App\Http\Controllers\Backend\AdminDashboardController;
use App\Http\Controllers\Backend\CategoryController;
use App\Http\Controllers\UserGuide\UserGuideController;
use App\Http\Controllers\Backend\AdminController;
use App\Http\Controllers\FrontEnd\IndexController;


// front end Route All GO Here


Route::get('/', function () {
    return view('FrontEnd.FrontWeb.index');
});


Route::get('/User-Guide',[IndexController::class,'UserGuide'])->name('User.Guide');
Route::get('/about',[IndexController::class,'About'])->name('About.Page');
Route::get('/check-time-Software-download',[IndexController::class,'Download'])->name('Download.Page');
Route::get('/contact-us',[IndexController::class,'ContectUs'])->name('Contact.Us');


// Admin Route All Here

Route::middleware(['auth:sanctum', 'verified'])->get('/dashboard', function () {

    return view('dashboard');

})->name('dashboard');


Route::get('logout/',[AdminController::class,'logout'])->name('user.logout');

Answer 1

Namespaces are case-sensitive. In Laravel, the app namespace is with a lowercase a.