Make sure you are using Correct Namespace in Routes on Laravel.
When defining routes in web.php or api.php, make sure you are using the correct namespace for your controller:
Check Controller Namespace: Make sure that the namespace of your PostController is correct. In Laravel, controllers are typically placed in the App\Http\Controllers namespace. So, your PostController should look something like this:
class PostController extends Controller
// Your controller code here
Composer Dump-Autoload: Run the following command in your terminal to regenerate the list of all classes that need to be included in the project:
This command ensures that any changes in the classmap are reflected.
Open App\Provider\RouteServiceProvider.php and add this line
protected $namespace = 'App\Http\Controllers';
Below this line –
public const HOME = '/home';