[BioC] plier error

[D.Enrique ESCOBAR ESPINOZA]

i try to do a plier normalization:
require	(plier)						;		
anAffyBatchObj<-ReadAffy(filenames=myCels,phenoData=NULL)	;
myExpSet<-justPlier	(anAffyBatchObj);

i receive an error
............
Error in z[[i]] : subscript out of bounds
In addition: Warning messages:
no finite arguments to max; returning -Inf

i don t get why...

can someone tell me why i have this error?