I'm trying to switch my document from using the float and subfig packages to using subcaption. The thing is, I want to have \begin{figure}[H], which I had before; but now I get:

! LaTeX Error: Unknown float option `H'.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.

l.844 \begin{figure}[H]

What should I do? If I can't make this option available to me, can I achieve the same effect some other way (e.g. wrapping the float in a minipage? Something less ugly?)

  • the H option is defined by the float package, if you stop using that package, stop using H – David Carlisle Jul 16 '17 at 22:22
  • @DavidCarlisle: See edit... – einpoklum Jul 16 '17 at 22:27
  • you could just use a minipage (since H more or less just makes the figure a minipage and not a float) but can you not use the float package in conjunction with subcaption? – David Carlisle Jul 16 '17 at 23:04
  • @DavidCarlisle: If I try to, I get the dreaded ` LaTeX Error: Command \float@end already defined.` error. – einpoklum Jul 16 '17 at 23:09
  • as always, if you want help with an error post an example that makes it:-) (too late to look tonight but someone can) – David Carlisle Jul 16 '17 at 23:12

Actually, the float package is compatible with subcaption. You just need to make sure and \usepackage{float} in the right place - namely, before \usepackage{hyperref} --- as otherwise you get an error.

When you do that, your \begin{figure}[H]'s will be positioned like they used to with no complaints.

Thanks @DavidCarlisle.

  • Even with float before hyperref, I get the error. The only solution for me was to remove subcaption. – Martin Monperrus Oct 4 '19 at 6:47
  • Same experience here on the newest versions of texlive. What have you replaced subcaption with @MartinMonperrus ? – Andrzej Wąsowski Oct 21 '19 at 7:42

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