Illegal offset type in isset or empty (View: file.blade.php)

I am getting an error in my file.blade.php but every thing in file is correct

traces

FileViewFinder.php (line 71)

public function find($name)    {        
if (isset($this->views[$name])) {

Error starts from line 71 of FileViewFinder.php

any help is appreciated

via Chebli Mohamed