Page Layout ⇒ appendices error

[jps_seq]

Hello

i'am writing my thesis. I want to create a appendix.
I'm using this code:

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\begin{appendices}
  \chapter{Consectetur adipiscing elit}
  \chapter{Mauris euismod}
\end{appendices}

when I run to create a pdf, appears error. I don't know the problem. If I use

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chapter

in appendices environment, i have error. But, if I use

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section

, i don't have problems.

[Johannes_B]

It is impossible to spot the cause of the error with this little information. You can try to prepare a minimal working example. This gives us just the information we need to provide a solution. Please follow the link to learn how to prepare one.