Please post error messages as text. This serves two purposes --
1) The folks reading your post will see the error message immediately, and
2) Folks who encounter the same error are likely to find your post (and its
solution) when searching with the message.
If you need to include an image, please use an image format (.jpg/.png),
not a document format that supports scripting malware (fewer people are
willing to download Word documents).
All initial posts should always include the version of ArcGIS you are using.
A link to the unsupported utility would have been useful.
- V