I have a Hiseq-4000 run data.Out of eight lane , 1,2,3,5,6,7,8 are eight index length and lane 4 is six lane index. I have made two sample sheet like sample sheet with 8 index barcode and sample sheet with 6 index. First I have demultiplexed the data (bcl2fast V2.16) with 8 index Sample sheet by using --use-bases-mask Y*,I8n,Y* base mask and got the out put .After wards I have tried to do demultiplex the data with 6 index length sample sheet by using --use-bases-mask Y*,I6n,Y* base mask. In Second case (6 base) got the following error
Error : One or more read masks do not match the number of cycles specified in RunInfo.xml, and a '*' was specified. There is no way to determine the number of cycles implied by the '*'. Base mask: y*'
Please can you tell me that how to use the base mask in such situation , same run with two type of index (6 and 8 length barcode).