Laravel - Method Not Allowed HTTP Exception (RouteCollection.php line 218) - php

Question

I'm currently new on Laravel and trying to develop my first project. I have this MethodNotAllowedHttpException in RouteCollection.php line 218 error during my development for inserting data into database. I have searched both Google & Stackoverflow for solutions but non are related to my current problem and some of them way too complex for this simple problem (I think so...).
I have my form in my checklist page:-
<form action="{{url('addchecklist')}}" method="POST">
{{ csrf_field() }}
<div class="row">
<div class="col-sm-12">
<div class="text-left">
<input type="hidden" name="schmFK" value="{{$id}}">
<div class="col-sm-6">
<h4>
<label>Section</label>
<select class="selectpicker form-control" data-live-search="true" name="sctionPK">
<option selected>Select the Section</option>
#foreach ($sction as $key=>$slct1)
<option value="{{$slct1->ssctionPK}}">{{strtoupper($slct1->ssctionName)}}</option>
#endforeach
</select>
</h4>
</div>
<div class="col-sm-2">
<button type="button" data-toggle="modal" data-target=".bs-example-modal-lg" class="btn btn-primary btn-sm" style="margin-top:33px; padding-top:7px; padding-bottom:7px;">Add Section</button>
</div>
<div class="col-sm-4">
<h4>
<label>Severity</label>
<select class="selectpicker form-control" name="svrityPK">
<option selected>Select the Severity</option>
#foreach ($svrity as $key=>$slct2)
<option value="{{$slct2->severityPK}}">{{strtoupper($slct2->severityName)}}</option>
#endforeach
</select>
</h4>
</div>
<div class="col-sm-12">
<h4>
<label>Question</label>
<input class="form-control" type="text" placeholder="Question" name="question">
</h4>
</div>
<div class="col-sm-6">
#include('widgets.button', array('class'=>'primary btnaddstd', 'size'=>'lg', 'type'=>'submit', 'value'=>'Add Checklist'))
</div>
</div>
</div>
</div>
</form>
Then I have this route for inserting data from the form into database:-
Route::post('/addchecklist', function (Request $request){
// Create instance to store record
$scheme = new App\checklists;
$scheme->schmFK = $request->schmFK;
$scheme->schSectionFK = $request->sctionPK;
$scheme->severityFK = $request->svrityPK;
$scheme->clQuestion = $request->question;
$scheme->save(); // save the input
// Sort all records descending to retrieve the newest added record
$input = App\checklists::orderBy('cklistPK','desc')->first();
// Set search field variable default value of null
$src = isset($src) ? $src : null;
// Get Checklist reference from cklists_stddetails with the designated ID
$chkstd = App\Cklists_stddetail::where('cklistFK', $input->cklistPK)
->join('stddetails', 'stdDtlFK', '=', 'stddetails.sdtlPK')
->get();
// Get the newest stored record
$chcklst = App\checklists::where('cklistPK', $input->cklistPK)->firstOrFail();
// Get all data from table 'stddetails'
$stddetail = App\stddetails::all();
// Get all data from table 'standards'
$stndrd = App\standard::all();
// Get all data from table 'sections'
$sction = App\Section::all();
// Redirect to 'addref.blade' page with the newest added record
return redirect('addref/'.$input->cklistPK)
->with('src', $src)
->with('chkstd', $chkstd)
->with('id',$input->cklistPK)
->with('schmid', $request->schmFK)
->with('chcklst', $chcklst)
->with('stddetail', $stddetail)
->with('stndrd', $stndrd)
->with('sction', $sction);
});
My scenario is this, I have a form for user to input data in it. Then when the data is saved, they will be redirected to the page of that data to do something there. The data is successfully saved in the database but the redirection to the designated page (addref.blade) with the newest record ID return error:-
But the URL goes where I wanted it to go (means the URL is right):-
As you can see, the usual solution from the net that I found are:-
Make sure both method from routes and the form is the same, and mine it is:-
method="POST"
Route::post
Make sure the URL routes can recognize the form's action URL, and mine it is:-
<form action="{{url('addchecklist')}}" method="POST">
Route::post('/addchecklist', function (Request $request)
Include CSRF token field in the form, and mine it have been included:-
<form action="{{url('addchecklist')}}" method="POST">
{{ csrf_field() }}
I have tried those simple solution provided on the net and nothing is helpful enough. I'm still wondering what else I have missed and hoped that anyone here can assist on solving my issue.

Answer 1

I think the error is that you have a redirect which you have not registered in your routes or web.php file.
Sample redirect:
Route::post('/addchecklist', function (Request $request){
//some post process here...
return redirect('addref/'.$input->cklistPK)
->with('src', $src)
->with('chkstd', $chkstd)
->with('id',$input->cklistPK)
->with('schmid', $request->schmFK)
->with('chcklst', $chcklst)
->with('stddetail', $stddetail)
->with('stndrd', $stndrd)
->with('sction', $sction);
});
Route::get('addref/{id}', function(Request $request){
//show the blade.php with data
});

Answer 2

Can you please write :
url('/addchecklist')
instead of :
url('addchecklist')
and then print_r('in');
and die; and check what you get.
Route::post('/addchecklist', function (Request $request){
print_r('in');
die;
});