OS (e.g. Win10): PsychoPy version (e.g. 2024.2.4 Py 3.8): What are you trying to achieve?:
Choose target image.when mouse point image,image contrast will change.when choose target,there will have a feedback ‘right’ with green.But now,when mouse point target no response(mouse point distract response),and mouse click the program will wrong.
comes from. It is not in your working example. The error message tells you that you use an operand that can not be used in this context. It could be that you see the error 'NoneType' because you have an operand or an object that is None when you were expecting something else. It could also be that you are trying to manipulate operands of different type, e.g. a string and an integer.