Hey @woxinguangming this book was published in 2019, there are bound to be somethings that get outdated in the span of 2 years.
But, if you can provide details regarding the issues that you are facing we can try contacting the author and getting them to resolve your queries.
Hey @woxinguangming this book was published in 2019, there are bound to be somethings that get outdated in the span of 2 years. But, if you can provide details regarding the issues that you are facing we can try contacting the author and getting them to resolve your queries.