magento提示Exception printing is disabled by default for security reasons.
解决方法：
改变magento根目录下 /errors/local.xml.sample 为/errors/local.xml
改变magento根目录下/lib/Zend/Cache/Backend/File.php文件里面
protected $_options = array(
'cache_dir' => NULL,
'file_locking' => true,
为
protected $_options = array(
'cache_dir' => 'tmp/',
'file_locking' => true,
然后在根目录下创建tmp文件夹.
