Probleme mit >{\centering}p{3.8cm} und dem tabularx Paket

Ich möchte eine Tabelle machen in der ich die letzten drei Spalten mit fester Breite aber zentriert definiere. Dazu nutze ich das tabularx Paket. Folgendes Beispiel mit nur zwei Spalten zentriert läuft einwandfrei:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
\begin{table}[p]
  \label{konfigurationenExperiment1}  
  \centering
  \begin{tabular}[t]{|c||>{\centering}p{3.8cm}|>{\centering}p{3.8cm}| p{3.8cm}|}
  \hline
    Konfigration & Anzahl eingesetzter Fahrzeuge & Verwendetes Routingverfahren & Verwendetes Auftragsvergabeverfahren\\
  \hline  
  \hline  
   1 & 8 & Nicht konfliktvermeidend & Einfaches Auktionsverfahren\\
  \hline  
   2 & 8 & Konfliktvermeidend ohne Verhandlungen & Einfaches Auktionsverfahren\\
  \hline
  \end{tabular}
  \caption{Konfigrationen Experiment 1}
\end{table}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Wenn ich nun aber auch die letzte Spalte zentrieren möchte:

1
\begin{tabular}[t]{|c||>{\centering}p{3.8cm}|>{\centering}p{3.8cm}| |>{\centering}p{3.8cm}|}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

erhalte ich folgende Fehlermeldungen:

1
2
3
4
5
6
! Misplaced \noalign.  
\hline ->\noalign  
{\ifnum 0=`}\fi \hrule \@height \arrayrulewidth \futurelet...  
l.59 \hline  
I expect to see \noalign only after the \cr of  
an alignment. Proceed, and I'll ignore this case.
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Hat jemand eine Idee? Ich stehe da gerade auf dem Schlauch, weil ich mir nicht erklären kann, warum es mit Spalten 2 und 3 zentriert klappt aber mit Spalten 2,3 und 4 nicht.

Grüße, Christoph