laravel - FatalErrorException in Model.php line 750: Class not found Laravel5 -

i'm in process of upgrading laravel 4.2 project 5.0 i've been making reasonable progress until particular error:

fatalerrorexception in model.php line 750: class 'sapproduct' not found.

my sapproduct class called product class hasone relationship , can't work out why laravel can't find it.

sapproduct.php

namespace app\models;  use eloquent;  class sapproduct extends eloquent {     public function brand()     {         return $this->belongsto('app\models\brand', 'u_brand', 'name');     } } 

product.php

namespace app\models;  use eloquent;  class product extends eloquent {     ...     public function sapproduct()     {         $relationship = $this->hasone('app\models\sapproduct', 'itemcode', 'itemcode');     }     ... } 

model.php (lines 746-755)

public function hasone($related, $foreignkey = null, $localkey = null) {     $foreignkey = $foreignkey ?: $this->getforeignkey();      $instance = new $related;      $localkey = $localkey ?: $this->getkeyname();      return new hasone($instance->newquery(), $this, $instance->gettable().'.'.$foreignkey, $localkey); } 

i apologise if i'm missing other necessary information, i'll add more as/if requested.

thanks

after spending far time on problem tracked down offending line.

the relationship had chained through model had not had it's relationship 'sapproduct' correctly namespaced.

the offending model productvariation.php , has following incorrect line:

$relationship = $this->hasone('sapproduct', 'itemcode', 'itemcode'); 

when needed be:

$relationship = $this->hasone('app\models\sapproduct', 'itemcode', 'itemcode'); 

this why laravel bring sapproduct error in capitals rather camel case.

thanks tried help!