I used the following
\usepackage[a4paper,width=150mm,top=25mm,bottom=25mm,bindingoffset=6mm]{geometry} \usepackage{fancyhdr} \pagestyle{fancy} \fancyhead{} \fancyhead[RO,LE]{Systemic Crisis: Visualizing Vulnerability} \fancyfoot{} \fancyfoot[LE,RO]{\thepage} \fancyfoot[LO,CE]{chapter \thechapter} \fancyfoot[CO,RE]{Raisul Islam} \renewcommand{\headrulewidth}{0.4pt} \renewcommand{\footrulewidth}{0.4pt}
I am writing my thesis. i have the warning
Package Fancyhdr Warning: \headheight is too small (12.0pt): Make it at least 14.49998pt. We now make it that large for the rest of the document. This may cause the page layout to be inconsistent, however.
Please help
\setlength\headheight{15pt}– David Carlisle Feb 13 '20 at 20:45