"Class datatables does not exist" Error when using "yajra" laravel datatables - datatable

Question

I want to show a list of my posts table rows via datatables jquery plugin with laravel version 5.1 via yajra-laravel-datatables.
For that I do all instructions described in this Quick Start Giude in my project.
this is my Route only for get all data that are Necessary for dataTable:
Route::get('postsData', 'postController#testData');
and this is complete postController php file :
namespace App\Http\Controllers;
use App\Http\Requests;
use App\Post;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Input;
use Illuminate\Support\Facades\Redirect;
use Illuminate\Support\Facades\View;
use yajra\Datatables\Datatables;
class postController extends Controller
{
public function index ()
{
$allPosts = Post::all();
return \View::make('admin.pages.posts')->with('posts', $allPosts);
}
public function create ()
{
return \View::make('admin.pages.post_create');
}
public function store (Request $request)
{
$data = Input::all();
$rules = array (
'post_title' => 'required',
'post_desc' => 'required'
);
$validator = \Validator::make($data, $rules);
if ($validator->fails()) {
return \Redirect::to('/admin/posts/create')
->withErrors($validator)
->withInput();
} else {
$post = new Post();
$post->post_title = $data['post_title'];
$post->post_desc = $data['post_desc'];
$post->save();
return \Redirect::to('/admin/posts');
}
}
public function show ($id)
{
$post = Post::find($id);
return \View::make('admin.pages.show_post')->with('post', $post);
}
public function edit ($id)
{
$post = Post::find($id);
return \View::make('admin.pages.edit_post')->with('post', $post);
}
public function update (Request $request, $id)
{
$data = Input::all();
$rules = array (
'post_title' => 'required',
'post_desc' => 'required'
);
$validator = \Validator::make($data, $rules);
if ($validator->fails()) {
return \Redirect::to('post/create')
->withErrors($validator)
->withInput();
} else {
$post = Post::find($id);
$post->post_title = $data['post_title'];
$post->post_desc = $data['post_desc'];
$post->save();
return \Redirect::to('admin/posts');
}
}
public function destroy ($id)
{
$post = Post::find($id);
$post->delete();
return Redirect::to('admin/posts');
}
public function postsAll(){
return View::make('admin.pages.postsAll');
}
public function testData(){
return Datatables::of(Post::select('*'))->make(true);
}
}
also I add Service Provider and Facade to config/app.php :
return [
'debug' => env('APP_DEBUG', false),
'url' => 'http://localhost',
'timezone' => 'UTC',
'locale' => 'en',
'fallback_locale' => 'en',
'key' => env('APP_KEY', 'SomeRandomString'),
'cipher' => 'AES-256-CBC',
'log' => 'single',
'providers' => [
/*
* Laravel Framework Service Providers...
*/
Illuminate\Foundation\Providers\ArtisanServiceProvider::class,
Illuminate\Auth\AuthServiceProvider::class,
Illuminate\Broadcasting\BroadcastServiceProvider::class,
Illuminate\Bus\BusServiceProvider::class,
Illuminate\Cache\CacheServiceProvider::class,
Illuminate\Foundation\Providers\ConsoleSupportServiceProvider::class,
Illuminate\Routing\ControllerServiceProvider::class,
Illuminate\Cookie\CookieServiceProvider::class,
Illuminate\Database\DatabaseServiceProvider::class,
Illuminate\Encryption\EncryptionServiceProvider::class,
Illuminate\Filesystem\FilesystemServiceProvider::class,
Illuminate\Foundation\Providers\FoundationServiceProvider::class,
Illuminate\Hashing\HashServiceProvider::class,
Illuminate\Mail\MailServiceProvider::class,
Illuminate\Pagination\PaginationServiceProvider::class,
Illuminate\Pipeline\PipelineServiceProvider::class,
Illuminate\Queue\QueueServiceProvider::class,
Illuminate\Redis\RedisServiceProvider::class,
Illuminate\Auth\Passwords\PasswordResetServiceProvider::class,
Illuminate\Session\SessionServiceProvider::class,
Illuminate\Translation\TranslationServiceProvider::class,
Illuminate\Validation\ValidationServiceProvider::class,
Illuminate\View\ViewServiceProvider::class,
Barryvdh\LaravelIdeHelper\IdeHelperServiceProvider::class,
yajra\Datatables\DatatablesServiceProvider::class,
/*
* Application Service Providers...
*/
App\Providers\AppServiceProvider::class,
App\Providers\AuthServiceProvider::class,
App\Providers\EventServiceProvider::class,
App\Providers\RouteServiceProvider::class,
],
'aliases' => [
'App' => Illuminate\Support\Facades\App::class,
'Artisan' => Illuminate\Support\Facades\Artisan::class,
'Auth' => Illuminate\Support\Facades\Auth::class,
'Blade' => Illuminate\Support\Facades\Blade::class,
'Bus' => Illuminate\Support\Facades\Bus::class,
'Cache' => Illuminate\Support\Facades\Cache::class,
'Config' => Illuminate\Support\Facades\Config::class,
'Cookie' => Illuminate\Support\Facades\Cookie::class,
'Crypt' => Illuminate\Support\Facades\Crypt::class,
'DB' => Illuminate\Support\Facades\DB::class,
'Eloquent' => Illuminate\Database\Eloquent\Model::class,
'Event' => Illuminate\Support\Facades\Event::class,
'File' => Illuminate\Support\Facades\File::class,
'Gate' => Illuminate\Support\Facades\Gate::class,
'Hash' => Illuminate\Support\Facades\Hash::class,
'Input' => Illuminate\Support\Facades\Input::class,
'Inspiring' => Illuminate\Foundation\Inspiring::class,
'Lang' => Illuminate\Support\Facades\Lang::class,
'Log' => Illuminate\Support\Facades\Log::class,
'Mail' => Illuminate\Support\Facades\Mail::class,
'Password' => Illuminate\Support\Facades\Password::class,
'Queue' => Illuminate\Support\Facades\Queue::class,
'Redirect' => Illuminate\Support\Facades\Redirect::class,
'Redis' => Illuminate\Support\Facades\Redis::class,
'Request' => Illuminate\Support\Facades\Request::class,
'Response' => Illuminate\Support\Facades\Response::class,
'Route' => Illuminate\Support\Facades\Route::class,
'Schema' => Illuminate\Support\Facades\Schema::class,
'Session' => Illuminate\Support\Facades\Session::class,
'Storage' => Illuminate\Support\Facades\Storage::class,
'URL' => Illuminate\Support\Facades\URL::class,
'Validator' => Illuminate\Support\Facades\Validator::class,
'View' => Illuminate\Support\Facades\View::class,
'Datatables' => yajra\Datatables\Datatables::class,
],
];
And this is Structure of yajra in vendor composer folder:
But when I open postsData path in browser this error shown:
ReflectionException in Container.php line 737:
Class datatables does not exist
What is Problem?

Answer 1

I found the solution after hours of googling and try different ways :
1.first rename your project to a new name.
2.use composer update
3.run php artisan config:cache
4.and run php artisan cache:clear
and try your Code again.

Answer 2

Try change in your controller
Remove:
use yajra\Datatables\Datatables;
Add
use Datatables;
config/app.php
You must have in providers:
yajra\Datatables\DatatablesServiceProvider::class,
and must have in aliases:
'Datatables' => yajra\Datatables\Datatables::class,

Answer 3

I manage to fix the same bugs.
In config/app.php
Yajra\DataTables\DatatablesServiceProvider::class,
Datatables' => Yajra\DataTables\Facades\Datatables::class,
Just make sure you capitalize 'T' in the '\DataTables\'
Ref. https://github.com/yajra/laravel-datatables/issues/986

Answer 4

same error has also happened if you don't have conf/datatables.php. try installing latest or above 7.x
composer require yajra/laravel-datatables-oracle
add these lines in config/app.php
Yajra\Datatables\DatatablesServiceProvider::class,
'Datatables' => Yajra\Datatables\Facades\Datatables::class,
php artisan config:cache
if you don't have file config/datables.conf. Try to paste these file there.
https://gist.github.com/hsali/1cab0d6c81020bf7bce043b65f94373a

Answer 5

Try this:
use Yajra\Datatables\Facades\Datatables;