I am using Lyx 2.0.5.1 on linux / Archlinux and using the class a derivate of class report . When I try to generate the PDF I get the errors :
)) (/usr/share/texmf-dist/tex/latex/fragments/subscript.sty) ! Undefined control sequence. l.24 \floatstyle {} The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! Undefined control sequence. l.25 \newfloat {}{}{} The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! Undefined control sequence. l.27 \floatname {}{\protect\name} The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. Those errors always happens when I put a table inside a table float. Viewing the table float source code I get : % Preview source code for paragraph 248 \begin{table} \begin{espacoumemeio} \begin{tabular}{|l|l|l||l||l||cl|} \hline \multicolumn{7}{|c|}{\textbf{Especificações do Projeto}}\tabularnewline \hline Topologia da conversor & \multicolumn{6}{l|}{Boost - Elevador de tensão}\tabularnewline \hline Mínima tensão de entrada & Vi1 & \multicolumn{4}{r}{10} & V\tabularnewline \hline Máxima tensão de entrada & Vi2 & \multicolumn{4}{r}{21} & V\tabularnewline \hline Mínima tensão de saída & Vo1 & \multicolumn{4}{r}{27} & V\tabularnewline \hline Máxima tensão de saída & Vo2 & \multicolumn{4}{r}{28.8} & V\tabularnewline \hline Máxima potência transmitida & Pmax & \multicolumn{4}{r}{30} & W\tabularnewline \hline Frequência de chaveadmento & fs & \multicolumn{4}{r}{20} & KHz\tabularnewline \hline Ondulação da tensão de saída & $\Delta v_{O\%}$ & \multicolumn{4}{r}{1} & \%\tabularnewline \hline \end{tabular} \end{espacoumemeio} \caption{\textbf{Especificações do Projeto}} \end{table} But when I export to tex-pdflatex and remove the lines %% Because html converters don't know tabularnewline \providecommand{\tabularnewline}{\\} \floatstyle{} \newfloat{}{}{} \providecommand{\name}{} \floatname{}{\protect\name} and it compiles as expected. Anyone has faced this kind of problem ? Or have any clues ? Or is there any way to remove those commands by overriding them ?