[Tex/LaTex] Compilation Error “! Missing \endcsname inserted” The control sequence marked should not appear between \csname and \endcsname

debugging

here's my thesis Latex files: http://www.mediafire.com/download/c7q8z4v6gv864rk/triet_thesis_clean.rar

Please help me to fix the error, I've tried all the things I can find with Google 🙁 :

   ! Missing \endcsname inserted.
   <to be read again>
   \begingroup
   l.52 ...}intopreamble]Deobfuscation}{{4.1.1}{xii}}
   The control sequence marked <to be read again> should
   not appear between \csname and \endcsname.
   (D:\DH\Luan_Van_Tot_Nghiep\Latex\triet_thesis_test\LVTN.aux

Best Answer

You have a wrong character in one of your labels:

\subsection{LLVM}
\label{subsec:LLVMDeobfuscation}

where, between LLVM and Deobfuscation, you have the Unicode character U+200E (LEFT-TO-RIGHT MARK) that somehow sneaked in.

Retype the label and you should be OK.

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