Hi, All. I was running autosharp through the web-gui.But just at the preparation step,error happened like that below: **************************************************** 1.3 Extracting additional information (details) (explanation) (less than 1 second) ERROR : (see GETINFO/LISTautoSHARP.html) ****************************************************** When looking in the GETINFO/LISTautoSHARP.html file, I see the contents below: ************************************************************ 1. Getting additional information from each dataset 1.1 wavelength 1 (w1) 1.1.1 general NOTE : everything ok 1.1.2 Columns **************************************************************** Since the information here is so little, we failed to fix it out. Did anyone here can help? Thanks a million. Yuan SHANG