致命错误：在非对象上调用成员函数setTitle（）

Fatal error: Call to a member function setTitle() on a non-object in /home/exclus31/public_html/../../../app/code/core/Mage/Customer/Block/Form/Login.php on line 40

IndexAction()

getLayout()

loadLayout()

public function IndexAction() {
  $this->loadLayout(); // do this first
  $this->getLayout()->getBlock(\'head\')->setTitle($this->__(\'My Title\')); // then this works
  $this->renderLayout(); // render as usual
}