error while reading CEL files--gene expression data analysis

Hi

1. I used the protocol attached below for reading the CEL files, but i get an error. Could someone shed light on what is wrong in my protocol

2. If i want to read a array data downloaded from array express or NCBI geo, which component should i use. The protocols listed in PP all refers to ChipA and ChipB and i dont know what does it correspond to. pls clarify