Variable war schon vergeben

aufgaben/P_ALLG/datenanalyse/haeufigkeit/kuchendiagramm_v2_np.tex

   \begin{center}
 \begin{tikzpicture}[scale=3]
 
-\newcounter{aKuchB}
-\newcounter{bKuchB}
+\newcounter{aKuchBnp}
+\newcounter{bKuchBnp}
 \foreach \p/\f/\t in {
   20/{\color{blue}36\degre{}}/{\color{blue}Lenovo},
   30/{\color{red}40\%}/{\color{red}Apple},
   32/{\color{green}112 P.}/{\color{green}HP},
   18/???/andere}
   {
-    \setcounter{aKuchB}{\value{bKuchB}}
-    \addtocounter{bKuchB}{\p}
-    \slice{\theaKuchB/100*360}
-          {\thebKuchB/100*360}
+    \setcounter{aKuchBnp}{\value{bKuchBnp}}
+    \addtocounter{bKuchBnp}{\p}
+    \slice{\theaKuchBnp/100*360}
+          {\thebKuchBnp/100*360}
           {\p}{\f}{\t}
   }