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Common Mistakes (aka Gotcha’s)
¶
General Advice
My stimulus isn’t appearing, there’s only the grey background
The loop isn’t using my Excel spreadsheet
I just want a plain square, but it’s turning into a grating
The code snippet I’ve entered doesn’t do anything
My stimulus isn’t changing as I progress through the loop
I’m getting the error message AttributeError: ‘unicode object has no attribute ‘XXXX’
The window opens and immediately closes
If you are having problems getting the application to run please see
Troubleshooting
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