[Solved] I keep getting error that says main is not defined. I just want it to run. It’s supposed to let me enter the description, price, and unit [closed]

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I keep getting error that says main is not defined. I just want it to run. It’s supposed to let me enter the description, price, and unit [closed]

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solved I keep getting error that says main is not defined. I just want it to run. It’s supposed to let me enter the description, price, and unit [closed]