Error when installing new module in 2.0.1.1

craft37 wrote:Hi all!
Could anybody help with idea how to fix that?

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Fatal error: Call to undefined method User::getGroupId() in /admin/controller/extension/module.php on line 31

Lines looks like this:

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			$this->model_user_user_group->addPermission($this->user->getGroupId(), 'access', 'module/' . $this->request->get['extension']);
			$this->model_user_user_group->addPermission($this->user->getGroupId(), 'modify', 'module/' . $this->request->get['extension']);