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The author of the koma-script classes has decided to issue a warning about usage of titlesec along with them. However, you are not bound to use scrreprt and you can use book instead. You need to set the page geometry yourself, but this is already true when scrreprt is involved. \documentclass{book} \usepackage{arsclassica} % improve classicthesis \...


The log file will have a warning for each one so you just need to search the log for Reference foo on page 5 undefined


You can also use expl3 (that you already load along with fontspec). Case switching is simpler and also defining error messages. \documentclass{article} \usepackage{xparse} \usepackage{fontspec} \usepackage{polyglossia} \setdefaultlanguage[spelling=new]{german} \ExplSyntaxOn \NewDocumentCommand{\mymacro}{m} { \str_case:nnF { #1 } { {A}{\mymacroA} ...


\documentclass{article} \usepackage{xltxtra} \usepackage{polyglossia} \setdefaultlanguage[spelling=new]{german} \usepackage{ifthen} \newcommand{\mymacro}[1]{% \ifthenelse{ \equal{#1}{A} }% {A case}% {% \ifthenelse{ \equal{#1}{B} }%%% {B case}%%% {% \ifthenelse{ \equal{#1}{C} }%%% {C case}%%% ...


It just informs you that the pictures drawn by the layouts package will be at scale 1:2. This is the default value and you can change it if you like. See section 1.2.1 of the package documentation.


To make things easier: The LaTeX build wrapper ltx2any offers a nice (and aesthetical very pleasing) summary of any error or warnings in different file formates, amongst them pdf and markdown. From its webpage: Aggregates error messages and warnings from all tools into a nicely formatted log (Markdown or PDF) with references to source files and ...


It means that you have \label{split of ad} in two places. (The line 1 will refer to a file that is input, not your main file.)


The warning "pop empty color stack" is usually caused by color stack commands out of order. A typical scenario is the use of low level box set command \setbox instead of LaTeX box set macros (\sbox, environment lrbox, ...). When LaTeX sets a color, then the color reset command is issued after the current group. Therefore LaTeX box macros add a group layer ...


Well what it means is that's you've corrupted the colour stack. Unlike font changes colour is not an intrinsic attribute of a tex box, so colour changes are managed by nodes marking the change of state whatsit, Originally it was very hard to maintain colour correctly over page breaks, as the macro package needed to normalise colour in the page headings and ...

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