magento解决分类页没有产品图片报Image file was not found

For your Custom module follow following steps 1) you can create folder for placeholder images at

  media/mymodule/placeholder/placeholderImage.jpg

2) re-Write model Class

 Mage_Catalog_Model_Product_Image

3) Update the method

  public function setBaseFile($file)

Line around at 304

$baseFile = $baseDir . $file;

        if ((!$file) || (!file_exists($baseFile))) {
            throw new Exception(Mage::helper('catalog')->__('Image file was not found.'));
        }

replace with

$baseFile = $baseDir . $file;

    if ((!$file) || (!file_exists($baseFile))) {
        $module = $this->getRequest()->getModuleName();
        if($module=='mymodule'){
          $baseFile = Mage::getBaseUrl('media').'mymodule/placeholder/placeholderImage.jpg';
        }else{
          throw new Exception(Mage::helper('catalog')->__('Image file was not found.'));
        }
    }