bugtex4ht - Bugs: bug #422, error from pgflibraryfadings when...

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bug #422: error from pgflibraryfadings when adding tcolorbox with new tex4ht tikz driver. TL 2019

Submitted by:  Nasser M. Abbasi <nma123>
Submitted on:  Fri May 3 06:15:09 2019  
Category: NonePriority: 5 - Normal
Severity: 3 - MinorStatus: None
Privacy: PublicAssigned to: None
Open/Closed: Closed

Tue Dec 14 16:36:55 2021, comment #3:

I think the fix is in TL now.

Michal Hoftich <michal_h21>
Project Member
Mon Aug 19 01:17:26 2019, comment #2:

still awaiting a webquiz (or tikz) update that includes the new pgfsys-dvisvgm4ht.def to update in TL ...

Karl Berry <karl>
Project Administrator
Fri May 3 08:07:56 2019, comment #1:

Hi Nasser.

this issue had been fixed by the current version of the dvisvgm4ht driver. It should work for most documents now.


Michal Hoftich <michal_h21>
Project Member
Fri May 3 06:15:09 2019, original submission:

I think this looks like a bug. Reporting just in case.



Just installed fresh TL 2019. I was trying the new tikz driver for tex4ht. I found this error. Here is a MWE. This error only shows up in tex4ht and not in lualatex and it shows up only when adding tcolorbox package

I actually do not use \usepackage[most]{tcolorbox} much any more. This was in an old file. So I can remove this package for now. But thought to mention this error just in case it affects other code somewhere else.

Here is MWE


\ifdefined\HCode %This driver to tex4ht only. For tikz
\usepackage[most]{tcolorbox} %adding this causes the error

\adjustbox{max width=1.35in}{
\begin{tikzpicture}[baseline=(current bounding box.center)]
\coordinate[label =above:$0$, label =below:{$u=0$}] (A) at (0,0);
\coordinate[label =above:$\pi$, label =below:{$u_x=0$}] (B) at (4,0);

\draw (A) -- node[above] {$u_t = k u_{xx} +c^2 u_x $} node[below] {$f(x)$} ++ (B);

Gives error

! Undefined control sequence.
\a:tikzpicture ->\Picture
l.31 ...ing{east}{\pgfuseshading{pgf@lib@fade@east}}

TL 2019 on Linux

which make4ht
which lualatex


Nasser M. Abbasi <nma123>


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  • -unavailable- added by karl (Posted a comment)
  • -unavailable- added by michal_h21 (Posted a comment)
  • -unavailable- added by nma123 (Submitted the item)

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    Date Changed By Updated Field Previous Value => Replaced By
    Tue Dec 14 16:36:55 2021michal_h21Open/ClosedOpen=>Closed
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