The same error is showing for me with the attached file. It's a physics book from http://arxiv.org/abs/hep-th/0107094 . Scroll to page 4 to trigger the error.
The same error is showing for me with the attached file. It's a physics book from http:// arxiv.org/ abs/hep- th/0107094 . Scroll to page 4 to trigger the error.