I'm new to LaTeX, and have been given a LaTeX draft for writing a thesis. Everything works fine except for this warning:

```
see the transcript file for additional information)pdfTeX warning (dest): name{ehrenw\366rtliche\040erkl\344rung.1} has been referenced but does not exist, replaced by a fixed one

```

Here is the position in the code:

```
\refstepcounter{dummy}  
\pdfbookmark[1]{Ehrenwörtliche Erklärung}{ehrenwörtliche erklärung}  
\chapter*{Ehrenwörtliche Erklärung}  
\thispagestyle{empty}`

```

When I don't use German Umlauts(ä,ö,ü), i.e.

```
\pdfbookmark[1]{Ehrenwoertliche Erklaerung}{ehrenwoertliche erklaerung}

```

it works fine! I don't get any warnings and the link works.

I've been Googling for 2 weeks for similar warnings, and trying things out but none worked.
Any one with similar experience or ideas how to get this fixed.

I'm using MAC 10.8 with MacTeX-2012