Hi Sharon, 

Thanks for the quick response. It is still giving the same error. 

I am using Nutil v1.1, I just downloaded this yesterday on a different computer as I was trying to run quantifier on my laptop and the whole program would shut down and close before even starting the analysis. I have left all the advanced settings on default, so the customised reports is 'default'. I did save the .NUT file directly before starting. 

I do have two colours on my segmentations (red and blue) because I had to run object classification- but I don't think that should be a problem as the object colour (red) is selected. 

Thanks for your help, 

Elizabeth