R help - Mar 2003 - Problems with make.cdf.package

Hi all,

I have some problems with the function ''make.cdf.package''.
I installed the affy package as well as the makecdfenv package.
Then I tried to make an environment by using

R> make.cdf.env(filename)

or resp.

R> make.cdf.package(filename)

Both commands yield the error message:
=============================================Reading CDF file.
Creating CDF environment
Wait for about 228 
dots...................................................................................................................................................................................................................
Error in make.cdf.package(filename) :
         couldn''t find function "createPackage"
=============================================
Does somebody have an idea why this error message occur resp. where I 
can find the function ''createPackage''?

Thanx a lot,
Tobias