我正在使用book文档类来编写报告，其中我使用tikz名为的自定义形状绘制一些电路/块示意图dff我最初发现的这里然后稍微定制一下。
一切都运行正常，直到我将tikz的groupplots库（用于下面 MWE 中未显示的其他绘图）添加到我的序言中。然后，我的自定义形状无法再绘制，我得到的只是大量的“未定义的控制序列”和“Package PGF Math”错误，这些错误似乎与我的dff形状有关，但我无法理解。
下面的 MWE 显示了我用来精确定位冲突命令的完整前言；只需取消注释该行即可\usepgfplotslibrary{groupplots}看到它失败。任何关于如何解决这个问题的帮助或建议都将不胜感激。
\documentclass[a4paper]{book}
\usepackage[english]{babel}
\usepackage[utf8]{inputenc}
\usepackage{amssymb}
\usepackage{amsmath}
\usepackage{booktabs}
\usepackage{float}
\usepackage{hyperref}
\def\subfigureautorefname{Fig.}
\def\figureautorefname{Fig.}
\usepackage{mathtools}
\usepackage{mathdots}
\usepackage{multirow}
\usepackage{placeins}
\usepackage{subfig}
\usepackage{xcolor}
%\usepackage{tikz}
\usepackage[pdftex]{graphicx}
\graphicspath{{./img/}}
\DeclareGraphicsExtensions{.pdf}
\usepackage[capitalise,noabbrev]{cleveref}
\creflabelformat{equation}{#2#1#3}
\usepackage{siunitx}
\sisetup{exponent-product=\cdot,detect-all}
\usepackage{pgfplots, tikz-3dplot}
\usepgfplotslibrary{external}
%\usepgfplotslibrary{groupplots}
\tikzexternalize[prefix=test-\overlaynumber-]
\tikzsetexternalprefix{tikzpics/}
\usetikzlibrary{3D,
calc,%
decorations.markings,%
decorations.pathreplacing,%
external,%
positioning,%
circuits.logic.mux,%
shapes.gates.logic.US,%
shapes.geometric}
%\tikzset{node distance/.append code={ \pgfkeyssetvalue{/tikz/node distance value}{#1} }} % it's supposed to allow retrieving node distance with \pgfkeysvalueof{/tikz/node distance value}
\pgfplotsset{compat=newest, table/search path={./dat},scaled ticks=false,%
every axis/.append style={enlargelimits=false, axis on top,},%
every mark/.append style={mark size=1pt, mark line=solid},%
tick label style={font=\small, /pgf/number format/fixed}, label style={font=\small}, legend style={font=\small},%
xlabel style={at={(ticklabel cs:0.5,-5pt)},anchor=near ticklabel},%
ylabel style={at={(ticklabel cs:0.5,-5pt)},anchor=near ticklabel}}
\pgfdeclarelayer{back}
\pgfsetlayers{back,main}
\usepackage[americaninductors]{circuitikz}
\definecolor{mat1}{rgb}{0,0.447,0.7410}
\definecolor{mat2}{rgb}{0.8500,0.3250,0.0980}
\definecolor{mat3}{rgb}{0.9290,0.6940,0.1250}
\definecolor{mat4}{rgb}{0.4940,0.1840,0.5560}
% Rotated Data Flip Flip (DFF) shape
\pgfdeclareshape{dff}{
% The 'minimum width' and 'minimum height' keys, not the content, determine
% the size
\savedanchor\northeast{%
\pgfmathsetlength\pgf@x{\pgfshapeminwidth}%
\pgfmathsetlength\pgf@y{\pgfshapeminheight}%
\pgf@x=0.5\pgf@x
\pgf@y=0.5\pgf@y
}
% This is redundant, but makes some things easier:
\savedanchor\southwest{%
\pgfmathsetlength\pgf@x{\pgfshapeminwidth}%
\pgfmathsetlength\pgf@y{\pgfshapeminheight}%
\pgf@x=-0.5\pgf@x
\pgf@y=-0.5\pgf@y
}
% Inherit from rectangle
\inheritanchorborder[from=rectangle]
% Define same anchor a normal rectangle has
\anchor{center}{\pgfpointorigin}
\anchor{north}{\northeast \pgf@x=0pt}
\anchor{east}{\northeast \pgf@y=0pt}
\anchor{south}{\southwest \pgf@x=0pt}
\anchor{west}{\southwest \pgf@y=0pt}
\anchor{north east}{\northeast}
\anchor{north west}{\northeast \pgf@x=-\pgf@x}
\anchor{south west}{\southwest}
\anchor{south east}{\southwest \pgf@x=-\pgf@x}
\anchor{text}{
\pgfpointorigin
\advance\pgf@x by -.5\wd\pgfnodeparttextbox%
\advance\pgf@y by -.5\ht\pgfnodeparttextbox%
\advance\pgf@y by +.5\dp\pgfnodeparttextbox%
}
% Define anchors for signal ports
\anchor{D}{
\pgf@process{\northeast}%
\pgf@x=0pt%
\pgf@y=-\pgf@y%
}
\anchor{CLK}{
\pgf@process{\northeast}%
\pgf@x=-1\pgf@x%
\pgf@y=0pt%
}
\anchor{Q}{
\pgf@process{\northeast}%
\pgf@x=0pt%
\pgf@y=\pgf@y%
}
% Draw the rectangle box and the port labels
\backgroundpath{
% Rectangle box
\pgfpathrectanglecorners{\southwest}{\northeast}
% Angle (>) for clock input
\pgf@anchor@dff@CLK
\pgf@xa=\pgf@x \pgf@ya=\pgf@y
\pgf@xb=\pgf@x \pgf@yb=\pgf@y
\pgf@xc=\pgf@x \pgf@yc=\pgf@y
\pgfmathsetlength\pgf@x{.4ex} % size depends on font size
\advance\pgf@ya by \pgf@x
\advance\pgf@xb by \pgf@x
\advance\pgf@yc by -\pgf@x
\pgfpathmoveto{\pgfpoint{\pgf@xa}{\pgf@ya}}
\pgfpathlineto{\pgfpoint{\pgf@xb}{\pgf@yb}}
\pgfpathlineto{\pgfpoint{\pgf@xc}{\pgf@yc}}
\pgfclosepath
% Draw port labels
\begingroup
\tikzset{flip flop/port labels} % Use font from this style
\tikz@textfont
\endgroup
}
}
% Key to add font macros to the current font
\tikzset{add font/.code={\expandafter\def\expandafter\tikz@textfont\expandafter{\tikz@textfont#1}}}
% Define default style for this node
\tikzset{flip flop/port labels/.style={font=\sffamily\tiny}}
\tikzset{every dff node/.style={draw,minimum width=0.4cm,minimum
height=0.4cm,inner sep=1mm,outer sep=0pt,cap=round,add
font=\sffamily}}
\begin{document}
\begin{figure}[t]
\centering
\begin{tikzpicture}[auto, node distance=4mm and 4mm, circuit logic,every node/.style={font=\tiny},]%
\ctikzset{bipoles/thickness=1}
\node (data) at (0.5,0.3) [anchor=north]{data};
\node [shape=dff, draw] (ff1) [above=of data] {FF};
\end{tikzpicture}
\end{figure}
\end{document}