Guideline 2.1 - Performance - App Completeness
We discovered one or more bugs in your app when reviewed on iPad running iOS 12.3.1 on Wi-Fi.
Specifically, a network error message was displayed upon launch.
Next Steps
To resolve this issue, please run your app on a device to identify any issues, then revise and resubmit your app for review.
If we misunderstood the intended behavior of your app, please reply to this message in Resolution Center to provide information on how these features were intended to work.
For new apps, uninstall all previous versions of your app from a device, then install and follow the steps to reproduce the issue. For updates, install the new version as an update to the previous version, then follow the steps to reproduce the issue.
Resources
For information about testing your app and preparing it for review, please see Technical Note TN2431: App Testing Guide.
For a networking overview, please review About Networking.
Please see attached screenshot for details.
Guidelines 2.1 - Performance - Application integrity
When we run iOS on the iPad 12.3.1 check your applications on Wi-Fi, we found one or more bug.
Specifically, the network error message is displayed at startup.
The next step
To solve this problem, run your application to identify any problems on the device, then edit and resubmit your application for review.
If we misunderstand the expected behavior of your application, please reply to this message in the Resolution Center to provide information on how these features work.
For new applications, uninstall all previous versions of the application from the device, then install and follow the steps to reproduce the problem. For updates, install the new version is an update to the previous version, and then reproduce the problem, follow these steps.
Resources
About testing your application and be prepared to review the information, see the Technical Note TN2431: application testing guidelines.
About network overview, see content related to the network.
Please see Appendix shots.
Background Interface error. No data is returned refused ...
Reproduced in: https: //www.cnblogs.com/supersr/p/11059203.html