[R-SIG-Mac] Error while loading packages R 2.14.0

[Riccardo Romoli]

Hi, I have already installed R 2.14.0 and I have some problem to load  
several packages, in particular xcms package. I installed it directly  
from the GUI and when I try to load it the R I have:

 > library(xcms)
Error in dyn.load(file, DLLpath = DLLpath, ...) :
   unable to load shared object '/Users/riccardoromoli/Library/R/2.14/ 
library/xcms/libs/x86_64/xcms.so':
   dlopen(/Users/riccardoromoli/Library/R/2.14/library/xcms/libs/ 
x86_64/xcms.so, 6): Library not loaded: /usr/local/lib/libnetcdf.7.dylib
   Referenced from: /Users/riccardoromoli/Library/R/2.14/library/xcms/ 
libs/x86_64/xcms.so
   Reason: image not found
Inoltre: Warning message:
In library(pkg, character.only = TRUE, logical.return = TRUE, lib.loc  
= lib.loc) :
   there is no package called ‘digest’
Errore: package/namespace load failed for ‘xcms’
 >

I think the error is the absence of ibnetcdf.7.dylib. Do you have any  
idea how can I correct this error??

Best

Riccardo