After ios integrates Qiniu’s SDK, the following error is reported. Please tell me how to solve it. I have tried the methods I searched online to change the target settings, but they didn’t work. The error is reported as follows 
phpcn_u15822017-05-02 09:30:55
You can refer to: https://support.qiniu.com/hc/...
See if it can solve your problem.
