This is e-pTeX, Version 3.14159265-p3.8.2-190131-2.6 (utf8.euc) (TeX Live 2019) (preloaded format=platex 2019.10.15)  14 FEB 2020 17:34
entering extended mode
 restricted \write18 enabled.
 file:line:error style messages enabled.
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**chapter2.tex
(./chapter2.tex
pLaTeX2e <2019-10-01> (based on LaTeX2e <2019-10-01> patch level 1)
No file chapter2.aux.
\openout1 = `chapter2.aux'.

LaTeX Font Info:    Checking defaults for OML/cmm/m/it on input line 4.
LaTeX Font Info:    ... okay on input line 4.
LaTeX Font Info:    Checking defaults for T1/cmr/m/n on input line 4.
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LaTeX Font Info:    Checking defaults for OMS/cmsy/m/n on input line 4.
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LaTeX Font Info:    Checking defaults for U/cmr/m/n on input line 4.
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LaTeX Font Info:    ... okay on input line 4.

./chapter2.tex:4: LaTeX Error: The font size command \normalsize is not defined
:
               there is probably something wrong with the class file.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.4 \begin{document}
                    
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./chapter2.tex:4: Emergency stop.
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l.4 \begin{document}
                    
Your command was ignored.
Type  I <command> <return>  to replace it with another command,
or  <return>  to continue without it.

 
Here is how much of TeX's memory you used:
 7 strings out of 492763
 295 string characters out of 6140193
 63896 words of memory out of 5000000
 4549 multiletter control sequences out of 15000+600000
 7511 words of font info for 31 fonts, out of 8000000 for 9000
 929 hyphenation exceptions out of 8191
 9i,0n,6p,60b,30s stack positions out of 5000i,500n,10000p,200000b,80000s
No pages of output.