tokenmismatchexception on uploading a large file laravel 5

I get a token mismatch error when I try uploading a large file in laravel 5. I am using the token field in my form.

TokenMismatchException in VerifyCsrfToken.php line 53:

I already tried few methods:

1. increasing upload_max_filesize and post_max_size.
2. changing php.ini file and restarting apache services.
3. disabling the csrf middleware for that route, but the file is not fetched in this case !

I couldn't find anything besides these in the internet. Is there any other solution ?

via Chebli Mohamed