This is pdfTeX, Version 3.1415926-1.40.10 (TeX Live 2009/Debian) (format=pdflatex 2011.6.27) 14 JUL 2011 15:32 entering extended mode %&-line parsing enabled. **tutorialenv.tex ! Emergency stop. <*> tutorialenv.tex End of file on the terminal! Here is how much of TeX's memory you used: 3 strings out of 495061 112 string characters out of 1182621 45108 words of memory out of 3000000 3282 multiletter control sequences out of 15000+50000 3640 words of font info for 14 fonts, out of 3000000 for 9000 28 hyphenation exceptions out of 8191 0i,0n,0p,1b,6s stack positions out of 5000i,500n,10000p,200000b,50000s ! ==> Fatal error occurred, no output PDF file produced!