Hi My project seems to be corrupted! My backup project seems to be corrupted as well. I have attached the pop up and here is the traceback last xml element read: </_StorageUnit> parser state was: checking object validity ERROR loading xml ccp.nmr.Nmr ccp/nmr/Nmr.xml Traceback (most recent call last): File "/data/prog/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/AnalysisGui.py", line 217, in ? main(filename, max_size, glDirect) File "/data/prog/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/AnalysisGui.py", line 110, in main top.initProject(project) File "/data/prog/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/AnalysisPopup.py", line 929, in initProject Analysis.initProject(self, project) File "/data/prog/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/Analysis.py", line 406, in initProject self.initTopObjects(project) File "/data/prog/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/Analysis.py", line 195, in initTopObjects if not project.currentNmrProject: File "/data/prog/ccpnmr/temporaryReleaseDir/ccpnmr/ccpnmr1.0/python/memops/api/Implementation.py", line 18782, in getCurrentNmrProject File "/data/prog/ccpnmr/temporaryReleaseDir/ccpnmr/ccpnmr1.0/python/memops/api/Implementation.py", line 13173, in findFirstNmrProject File "/data/prog/ccpnmr/temporaryReleaseDir/ccpnmr/ccpnmr1.0/python/memops/api/Implementation.py", line 9066, in load File "/data/prog/ccpnmr/temporaryReleaseDir/ccpnmr/ccpnmr1.0/python/ccp/xml/nmr/Nmr.py", line 114, in load File "/data/prog/ccpnmr/temporaryReleaseDir/ccpnmr/ccpnmr1.0/python/memops/format/xml/XmlIO.py", line 425, in load File "/data/prog/ccpnmr/temporaryReleaseDir/ccpnmr/ccpnmr1.0/python/memops/format/xml/XmlIO.py", line 649, in doLoad File "/data/prog/ccpnmr/temporaryReleaseDir/ccpnmr/ccpnmr1.0/python/memops/api/Implementation.py", line 17175, in checkAllValid File "/data/prog/ccpnmr/temporaryReleaseDir/ccpnmr/ccpnmr1.0/python/ccp/api/nmr/Nmr.py", line 65394, in checkAllValid File "/data/prog/ccpnmr/temporaryReleaseDir/ccpnmr/ccpnmr1.0/python/ccp/api/nmr/Nmr.py", line 115605, in checkAllValid memops.general.Implementation.ApiError: ccp.nmr.Nmr.ShiftList.checkAllValid: measurements:non-unique key:<ccp.nmr.Nmr.Resonance ['temp', 16804]> >>> From what I can tell the project.xml seems to be complete. Any ideas on how I can fix this? Cheers Ben