[Tex/LaTex] ! Missing $ inserted. $

errors

I am new to LaTeX and I am using it to write a report with several chapters (main page in which I include the other pages).
I got this error:

C:\Users\hussam\Desktop\thèse\latex\thèse\thèse.brf

! Missing $ inserted.

<inserted text> 

                $

l.52

without any other information.

thèse.brf is a totally white page.
I looked at line 52 of all my documents but couldn't find any problem.

Best Answer

I had the same problem and solved it by correctly escaping ^, _, and |. Looks like LaTeX sets both $s itself if you seem to have forgotten them. Everything that may intend being a math formula causes this error.

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