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Incomplete \ifcase; all text was ignored after line 20. │ │ \fi │ l.20 \end{align*} │ │ ? s │ OK, entering \scrollmode... │ ! Extra \or. │ \c__char_xci_tl ->\or: [\or: [\or: [\or: [\or: │ \or: [[\or: [\or: [\or: \or: ... │ l.20 \end{align*} │ │ Runaway argument? │ ! Forbidden control sequence found while scanning use of \foo . │ │ \par │ l.20 \end{align*} │ │ ! Missing $ inserted. │ │ $ │ l.20 \end{align*} │ │ ! Missing } inserted. │ │ } │ l.20 \end{align*} │ │ ! Emergency stop. │ \endtemplate │ │ l.20 \end{align*} │ │ ! ==> Fatal error occurred, no output PDF file produced! │ Transcript written on test.log. └──── Sorry for these bad news ;) -- Denis