Fixing LaTeX Unknown option fetbodydiode for package circuitikz


You want to compile a LaTeX file containing CircuiTikZ code but you get the following error:

LaTeX Error: Unknown option `fetbodydiode' for package `circuitikz'


You have an outdated CircuiTikZ version (fetbodydiode is in TeXLive 2016+).  Depending on your distribution, there are several ways to update CircuiTikZ:

For ubuntu, see this post to update to TeXLive 2016

For other distributions, see this post using tlmgr