TikZ 库爱好的问题

Question

我正在使用 MiKTeX 的最新版本。在上次更新后，我意识到 TikZ 库hobby不再起作用。正如这个问题，我再次从这里但是当我编译文件时tex hobby.dtx出现错误：

======================================================================

  ! LaTeX Error: File `l3doc.cls' not found.

 Type X to quit or <RETURN> to proceed,
 or enter new name. (Default extension: cls)

 Enter file name: 

我再次更新 MiKTeX，但仍然出现同样的错误。当我编译包含 hobby 库的 Latex 文件时，我收到错误

!...............................................
l.185 ...riant:Nn \__msg_show_variable:Nnn { Nno }
|'''''''''''''''''''''''''''''''''''''''''''''''
| This is a coding error.
|
| LaTeX has been asked to use a control sequence '\__msg_show_variable:Nnn':
| this has not been defined yet.
|...............................................
 )
.................................................

这是我编译的示例：

 \documentclass{standalone}
  \usepackage{tikz}
   \usetikzlibrary{hobby,decorations.markings}
 \begin{document}
    \begin{tikzpicture}[use Hobby shortcut]
     % middle crossing loop
      % \draw (3,-1) .. (2,0) .. (0,0.93) .. (-0.93,0) .. (0,-0.93) .. (2,0) .. (3,1);
  \begin{scope}
    \clip (3,-1) rectangle (2,1);
    \draw[thick, blue, fill=blue!30] (3,-1) .. (2,0) .. (0,0.93) .. (-0.93,0) .. (0,-0.93) .. (2,0) .. (3,1);
  \end{scope}
  \begin{scope}
    \clip (2,1) rectangle (-1,-1);
   \draw[thick, red, fill=red!30] (3,-1) .. (2,0) .. (0,0.93) .. (-0.93,0) .. (0,-0.93) .. (2,0) .. (3,1);
  \end{scope}
   % filled points
  \fill (0,0) circle (1pt);
  \fill (2,0) circle (1pt);
  \end{tikzpicture}
 \end{document}