ErrorException: Attempt to read property "id" on null in file C:\xampp\htdocs\bongdaviet\app\Http\Controllers\BaiVietController.php on line 277 #0 C:\xampp\htdocs\bongdaviet\app\Http\Controllers\BaiVietController.php(277): Illuminate\Foundation\Bootstrap\HandleExceptions->handleError(2, 'Attempt to read...', 'C:\\xampp\\htdocs...', 277) #1 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Routing\Controller.php(54): App\Http\Controllers\BaiVietController->chiTiet2(Object(Illuminate\Http\Request), 'huong-dan-chay-...') #2 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Routing\ControllerDispatcher.php(45): Illuminate\Routing\Controller->callAction('chiTiet2', Array) #3 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Routing\Route.php(262): Illuminate\Routing\ControllerDispatcher->dispatch(Object(Illuminate\Routing\Route), Object(App\Http\Controllers\BaiVietController), 'chiTiet2') #4 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Routing\Route.php(205): Illuminate\Routing\Route->runController() #5 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Routing\Router.php(721): Illuminate\Routing\Route->run() #6 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(128): Illuminate\Routing\Router->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request)) #7 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Routing\Middleware\SubstituteBindings.php(50): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #8 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(167): Illuminate\Routing\Middleware\SubstituteBindings->handle(Object(Illuminate\Http\Request), Object(Closure)) #9 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\VerifyCsrfToken.php(78): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #10 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(167): Illuminate\Foundation\Http\Middleware\VerifyCsrfToken->handle(Object(Illuminate\Http\Request), Object(Closure)) #11 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\View\Middleware\ShareErrorsFromSession.php(49): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #12 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(167): Illuminate\View\Middleware\ShareErrorsFromSession->handle(Object(Illuminate\Http\Request), Object(Closure)) #13 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Session\Middleware\StartSession.php(121): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #14 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Session\Middleware\StartSession.php(64): Illuminate\Session\Middleware\StartSession->handleStatefulRequest(Object(Illuminate\Http\Request), Object(Illuminate\Session\Store), Object(Closure)) #15 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(167): Illuminate\Session\Middleware\StartSession->handle(Object(Illuminate\Http\Request), Object(Closure)) #16 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse.php(37): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #17 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(167): Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse->handle(Object(Illuminate\Http\Request), Object(Closure)) #18 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Cookie\Middleware\EncryptCookies.php(67): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #19 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(167): Illuminate\Cookie\Middleware\EncryptCookies->handle(Object(Illuminate\Http\Request), Object(Closure)) #20 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #21 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Routing\Router.php(723): Illuminate\Pipeline\Pipeline->then(Object(Closure)) #22 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Routing\Router.php(698): Illuminate\Routing\Router->runRouteWithinStack(Object(Illuminate\Routing\Route), Object(Illuminate\Http\Request)) #23 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Routing\Router.php(662): Illuminate\Routing\Router->runRoute(Object(Illuminate\Http\Request), Object(Illuminate\Routing\Route)) #24 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Routing\Router.php(651): Illuminate\Routing\Router->dispatchToRoute(Object(Illuminate\Http\Request)) #25 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Foundation\Http\Kernel.php(167): Illuminate\Routing\Router->dispatch(Object(Illuminate\Http\Request)) #26 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(128): Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http\{closure}(Object(Illuminate\Http\Request)) #27 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #28 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull.php(31): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle(Object(Illuminate\Http\Request), Object(Closure)) #29 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(167): Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull->handle(Object(Illuminate\Http\Request), Object(Closure)) #30 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #31 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\TrimStrings.php(40): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle(Object(Illuminate\Http\Request), Object(Closure)) #32 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(167): Illuminate\Foundation\Http\Middleware\TrimStrings->handle(Object(Illuminate\Http\Request), Object(Closure)) #33 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\ValidatePostSize.php(27): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #34 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(167): Illuminate\Foundation\Http\Middleware\ValidatePostSize->handle(Object(Illuminate\Http\Request), Object(Closure)) #35 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance.php(86): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #36 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(167): Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance->handle(Object(Illuminate\Http\Request), Object(Closure)) #37 C:\xampp\htdocs\bongdaviet\vendor\fruitcake\laravel-cors\src\HandleCors.php(38): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #38 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(167): Fruitcake\Cors\HandleCors->handle(Object(Illuminate\Http\Request), Object(Closure)) #39 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Http\Middleware\TrustProxies.php(39): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #40 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(167): Illuminate\Http\Middleware\TrustProxies->handle(Object(Illuminate\Http\Request), Object(Closure)) #41 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #42 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Foundation\Http\Kernel.php(142): Illuminate\Pipeline\Pipeline->then(Object(Closure)) #43 C:\xampp\htdocs\bongdaviet\vendor\laravel\framework\src\Illuminate\Foundation\Http\Kernel.php(111): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter(Object(Illuminate\Http\Request)) #44 C:\xampp\htdocs\bongdaviet\public\index.php(52): Illuminate\Foundation\Http\Kernel->handle(Object(Illuminate\Http\Request)) #45 {main}