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cakephp 生成链接异常

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Release： 2016-06-13 13:10:21
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cakephp 生成链接错误！
echo $Html->link('List All Tasks', array('action'=>'index')); ?>

错误信息： Call to a member function link() on a non-object
有高手可以解答吗？


------解决方案--------------------
控制器中应该是少public $helpers = array('Html');句吧！

Related labels：
array function gt html link
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