Hi Lalit, > File "/u/deshmukhl/softwares/ccpnmr/ccpnmr2.2/python/ccpnmr/format/gui/PeakDimSelectPopup.py", line 119, in body > isotopeString = string.join(dataDimRef.expDimRef.isotopeCodes,'/') > AttributeError: 'NoneType' object has no attribute 'expDimRef' This is already fixed internally, but not in your release yet apparently... . We'll try to get it in there asap! Bye, Wim