Laravel API: Illuminate\Contracts\Container\BindingResolutionException: Target class - laravel

Question

i am working on API. I want to create login api. i have created UsersController in API folder it in controllers. when i run in postman i shows an error
Illuminate\Contracts\Container\BindingResolutionException: Target class [App\Http\Controllers\App\Http\Controllers\API\UsersController] does not exist. in file F:\University_Data\xamp\htdocs\stylooworld\vendor\laravel\framework\src\Illuminate\Container\Container.php on line 835`
I don't now why its duplicated the routing path Target class [App\Http\Controllers\App\Http\Controllers\API\UsersController]
api.php
<?php
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;
/*
|--------------------------------------------------------------------------
| API Routes
|--------------------------------------------------------------------------
|
| Here is where you can register API routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| is assigned the "api" middleware group. Enjoy building your API!
|
*/
Route::middleware('auth:api')->get('/user', function (Request $request) {
return $request->user();
});
Route::namespace('App\Http\Controllers\API')->group(function () {
Route::post('login', 'UsersController#loginUser');
});
UsersController.php
<?php
namespace App\Http\Controllers\API;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\Http\Controllers\UserController;
class UsersController extends Controller
{
//
public function loginUser(Request $request)
{
if ($request->isMethod('post')) {
$data = $request->all();
echo "<pre>";
print_r($data);
die;
if (Auth::attempt(['email' => $data['email'], 'password' => $data['password']])) {
// check email is activated or not (Only Work Online Server)
/* $userStatus = User::where('email', $data['email'])->first();
if ($userStatus->status == 0) {
Auth::logout();
$message = "Your account is not activated yet! Please confirm your email to activate!";
Session::flash('error_message', $message);
return redirect()->back();
}*/
//update user cart with user id
if (!empty(Session::get('session_id'))) {
$user_id = Auth::user()->id;
$session_id = Session::get('session_id');
Cart::where('session_id', $session_id)->update(['user_id' => $user_id]);
}
return redirect('/');
} else {
$message = "Invalid Username or Password";
Session::flash('error_message', $message);
return redirect()->back();
}
}
}
}
I don't know why this happen?

Answer 1

Update the routes.
For details please check (ref link) https://laravel.com/docs/8.x/upgrade and https://laravel.com/docs/8.x/releases#routing-namespace-updates
Use like this
api.php
If not working
Route::namespace('App\Http\Controllers\API')->group(function () {
Route::post('login', 'UsersController#loginUser');
});
Then Use like this
use App\Http\Controllers\API\UsersController;
Route::post('login', [UsersController::class, 'loginUser']);

Answer 2

import method Request
class Request extends SymfonyRequest implements Arrayable, ArrayAccess
on click (import method) always ready.
are you ok.