Calephp 3.0 -> Error: Unknown method "fields"

Hello, I m working cakephp 3.0

Error :  Unknown method "fields"

Why ?  my code is 

$query = $this->ClientsFr->find('all')

->fields('ClientsFr.provider_id', 'ClientsFr.name')

->order(['ClientsFr.id' => 'ASC'])

->join([

'providers_fr' => [

'table' => 'providers_fr',

'type' => 'LEFT',

'conditions' => 'providers_fr.id = ClientsFr.provider_id'

]

]);

Please help. 

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