[Rd] Package check error: cannot extract package

[Sören Vogel]

Hi

Compilation failed for package GUTS for r-oldrel Windows, saying cannot extract package:

http://www.r-project.org/nosvn/R.check/r-oldrel-windows-ix86+x86_64/GUTS-00check.html

1. What does that mean?
2. Should I fix this (what are consequences if, or if not)?
3. How can I fix this?

Thanks
Sören