id,summary,reporter,owner,description,type,status,priority,milestone,component,resolution,keywords,cc,workpackage 1061,minor isue with simultaneous / constrained fits,richardh,krzywon,"Trying to break constrained simultaneous fit between 3 data sets (see attached project) with different models in current master for 4.2 Save project and load project worked fine, twice around, though each time the fit pages appeared in a different order the data and models still matched (hooray). However, having hit ""fit"" from the constraints page, if I then hit ""fit"" on an individual fit page gets error message: 2018-01-15 13:04:33 : Traceback (most recent call last):   File ""C:\sasview42\sasview\src\sas\sasgui\perspectives\fitting\fit_thread.py"", line 78, in compute     result = map(map_apply, inputs)   File ""C:\sasview42\sasview\src\sas\sasgui\perspectives\fitting\fit_thread.py"", line 14, in map_apply     return apply(arguments![0], arguments[1:])   File ""C:\sasview42\sasview\src\sas\sasgui\perspectives\fitting\fit_thread.py"", line 11, in map_getattr     return  getattr(classInstance, classFunc)(*args)   File ""C:\sasview42\sasview\src\sas\sascalc\fit\!BumpsFitting.py"", line 279, in fit     result = run_bumps(problem, handler, curr_thread)   File ""C:\sasview42\sasview\src\sas\sascalc\fit\!BumpsFitting.py"", line 379, in run_bumps     'uncertainty': getattr(fitdriver.fitter, 'state', None), !AttributeError: '!FitDriver' object has no attribute 'fitter'    None Turning off and back on any parameters with red NaN in their error bar fields (ie the parameters that were constrained), then hit ""stop"", gets the ""fit"" button back to normal and you can then do a fit on a single data set.",defect,new,minor,SasView 4.3.0,SasView,,,,SasView Bug Fixing