Magento 2 - Issue in Generate data which will use for performance testing
La solution
I hope the error was due to duplication of tax rates as you have installed Magento along with sample data. So you can proceed either by try removing sample data or truncating the tax_calculation
table. Once done this error will be gone. You might also face similar errors when you continue to create data with sample data installed. I have tried this command in Magento without sample data and I got the data created without any errors
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