[BioC] Computing affinitiesError [Scanned.]

[Wirawan]

Hi

I using R for analyse my chips
following step by step and found this problem.

 > es.raw <- gcrma(affy.data)       
Adjusting for optical effect....Done.
Computing affinitiesError in getProbePackage(probepackagename) :
  The current operation could not access the Bioconductor repository. 
Please check your internet connection, and report further problems to 
bioconductor at stat.math.ethz.ch
In addition: Warning message:
closing unused connection 3 (http://www.bioconductor.org/main.html)


how should I solve this problem?

Thanks
Wi