Unable to load in csv created in psychopy coder

[wakecarter]

Look for issues with the csv file, such as duplicate column names or spaces in the column names

UnboundLocalError: local variable 'trialList' referenced before assignment

Hello, I was getting the same error when I was trying to add my .csv conditions file to a loop. Referring to some of the above answers, I ensured that there were no spaces in my column names. It turns out that Psychopy didn’t like that one of my column names had a slash (I was trying to define a variable as old/new). But I generally use underscore a lot in my column names to make it easier during data cleaning and analysis and that hasn’t given me any errors in Psychopy so far. Hope this helps…