This is pdfTeX, Version 3.1415926-1.40.11 (MiKTeX 2.9) (preloaded format=pdflatex 2011.5.12) 15 MAY 2011 18:09 entering extended mode **C:/Studiarbeit*tex/Experimentelle.tex ("C:/Studiarbeit tex/Experimentelle.tex" LaTeX2e <2009/09/24> Babel and hyphenation patterns for english, afrikaans, ancientgreek, ar abic, armenian, assamese, basque, bengali, bokmal, bulgarian, catalan, coptic, croatian, czech, danish, dutch, esperanto, estonian, farsi, finnish, french, ga lician, german, german-x-2009-06-19, greek, gujarati, hindi, hungarian, iceland ic, indonesian, interlingua, irish, italian, kannada, kurmanji, lao, latin, lat vian, lithuanian, malayalam, marathi, mongolian, mongolianlmc, monogreek, ngerm an, ngerman-x-2009-06-19, nynorsk, oriya, panjabi, pinyin, polish, portuguese, romanian, russian, sanskrit, serbian, slovak, slovenian, spanish, swedish, swis sgerman, tamil, telugu, turkish, turkmen, ukenglish, ukrainian, uppersorbian, u senglishmax, welsh, loaded. ! Undefined control sequence. l.1 \chapter {Experimentelle Grundlagen} ? ! Emergency stop. l.1 \chapter {Experimentelle Grundlagen} End of file on the terminal! Here is how much of TeX's memory you used: 7 strings out of 494019 179 string characters out of 3148152 48862 words of memory out of 3000000 3395 multiletter control sequences out of 15000+200000 3640 words of font info for 14 fonts, out of 3000000 for 9000 714 hyphenation exceptions out of 8191 5i,0n,1p,76b,8s stack positions out of 5000i,500n,10000p,200000b,50000s ! ==> Fatal error occurred, no output PDF file produced!