Depending on the specific circumstances, you might need to define the control sequence using something like ewcommand, or you might need to load a package that defines it, or you might just have made a typo, as is the case here. tex file, and the specific control sequence shows up at the very end of that line.

The macro 'printbibliography' is defined through the contents of the actual bibliography, meaning that most likely you have something malformed in your. Look at the next line following 'Undefined control sequence.' The l.4 means that the control sequence in question was found on line 4 of your. The usual advice when encountering undefined control sequence is to run compilation interactively in order to pinpoint where the problem is actually happening. Closed phillip-toone opened this issue 10 comments Closed Undefined control sequence.

Control sequences have to be defined at some point so that the LaTeX compiler knows what they mean for example, ewcommandf(x_k)p Typically, they are written as a backslash followed by some letters (though there are some exceptions).

A control sequence is a sequence of characters that has special meaning to LaTeX - in other words, it tells the program to do something more interesting than just putting the corresponding characters into your document.

! undefined control sequence.