Hi, I am building an experiment with a loop that reads a condition file. When the file has a single column, the experiment runs, but when I add a second column I get an error:
Traceback (most recent call last):
File “C:\Program Files (x86)\PsychoPy3\lib\site-packages\psychopy\app\coder\coder.py”, line 2522, in runFile
fullPath = self.currentDoc.filename
AttributeError: ‘NoneType’ object has no attribute ‘filename’
I have deleted and recreated the loop and the condition file, used an xls and cvs format, and the error remains. Any ideas?