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(1/1) ErrorException

Trying to get property 'id' of non-object

in PagesController.php line 188
at HandleExceptions->handleError(8, 'Trying to get property \'id\' of non-object', '/home/goccoedu/public_html/gocco/php/app/Http/Controllers/PagesController.php', 188, array('join' => object(JoinClause), 'selectedCourse' => null))in PagesController.php line 188
at PagesController->App\Http\Controllers\{closure}(object(JoinClause))
at call_user_func(object(Closure), object(JoinClause))in Builder.php line 351
at Builder->join('college_courses', object(Closure))in Builder.php line 1254
at Builder->__call('join', array('college_courses', object(Closure)))in PagesController.php line 189
at PagesController->CourseAndCollegesList(object(Request), 'all', 'b-tech-cse-artificial-intelligence-and-machine-learning')
at call_user_func_array(array(object(PagesController), 'CourseAndCollegesList'), array(object(Request), 'city' => 'all', 'course' => 'b-tech-cse-artificial-intelligence-and-machine-learning'))in Controller.php line 55
at Controller->callAction('CourseAndCollegesList', array(object(Request), 'city' => 'all', 'course' => 'b-tech-cse-artificial-intelligence-and-machine-learning'))in ControllerDispatcher.php line 44
at ControllerDispatcher->dispatch(object(Route), object(PagesController), 'CourseAndCollegesList')in Route.php line 203
at Route->runController()in Route.php line 160
at Route->run()in Router.php line 572
at Router->Illuminate\Routing\{closure}(object(Request))in Pipeline.php line 30
at Pipeline->Illuminate\Routing\{closure}(object(Request))in SubstituteBindings.php line 41
at SubstituteBindings->handle(object(Request), object(Closure))in Pipeline.php line 148
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in ShareErrorsFromSession.php line 49
at ShareErrorsFromSession->handle(object(Request), object(Closure))in Pipeline.php line 148
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in StartSession.php line 64
at StartSession->handle(object(Request), object(Closure))in Pipeline.php line 148
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in AddQueuedCookiesToResponse.php line 37
at AddQueuedCookiesToResponse->handle(object(Request), object(Closure))in Pipeline.php line 148
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in EncryptCookies.php line 59
at EncryptCookies->handle(object(Request), object(Closure))in Pipeline.php line 148
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in Pipeline.php line 102
at Pipeline->then(object(Closure))in Router.php line 574
at Router->runRouteWithinStack(object(Route), object(Request))in Router.php line 533
at Router->dispatchToRoute(object(Request))in Router.php line 511
at Router->dispatch(object(Request))in Kernel.php line 176
at Kernel->Illuminate\Foundation\Http\{closure}(object(Request))in Pipeline.php line 30
at Pipeline->Illuminate\Routing\{closure}(object(Request))in HandleCors.php line 36
at HandleCors->handle(object(Request), object(Closure))in Pipeline.php line 148
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in TransformsRequest.php line 30
at TransformsRequest->handle(object(Request), object(Closure))in Pipeline.php line 148
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in TransformsRequest.php line 30
at TransformsRequest->handle(object(Request), object(Closure))in Pipeline.php line 148
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in ValidatePostSize.php line 27
at ValidatePostSize->handle(object(Request), object(Closure))in Pipeline.php line 148
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in CheckForMaintenanceMode.php line 46
at CheckForMaintenanceMode->handle(object(Request), object(Closure))in Pipeline.php line 148
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in Pipeline.php line 102
at Pipeline->then(object(Closure))in Kernel.php line 151
at Kernel->sendRequestThroughRouter(object(Request))in Kernel.php line 116
at Kernel->handle(object(Request))in index.php line 55