[BioC] Problem loading affy using a saved workspace

[James MacDonald]

Hi all,

I am running R/Bioconductor on WinXP using affy 1.1.1. (Biobase 1.3.10)

If I decide to open up an existing workspace that contains e.g., an AffyBatch and exprSet, I can open the workspace, but when I try to attach the affy package, I get the following error message.

[Previously saved workspace restored]

> library(affy)
Loading required package: tkWidgets 
Loading required package: widgetTools 
Loading required package: tkWidgets 

Attaching package `tkWidgets':


        The following object(s) are masked from package:tkWidgets :

         [snip]

Error in mlistMetaName(f) : No way to associate a generic function with an object of class "NULL"
Error in mlistMetaName(f) : No way to associate a generic function with an object of class "NULL"
Error in reconcilePropertiesAndPrototype(name, slots, prototype, superClasses) : 
        Class "AffyBatch" extends an undefined class ("exprSet"
Error in library(affy) : .First.lib failed
> 

Any ideas?

Jim




James W. MacDonald
UMCCC Microarray Core Facility
1500 E. Medical Center Drive
7410 CCGC
Ann Arbor MI 48109
734-647-5623