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,Hi,

I am checking condition in my module and showing error.

There is warning popup is coming as per attach image when error condition execute.

"Only variables should be passed by reference" 

if(!file_exists(_PS_IMG_DIR_.$dir.$image_name))
{
  $this->errors[] = $this->l('An error occurred while uploading the image.Please try again');
  return;
}

Any solution to this issue?

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