The API server interface of mobile phone returned an exception.

It means that in the process of code implementation of project development, users encounter errors when trying to call related functional interfaces, and cannot return correct parameters.

1. To avoid the abnormal return of the API server interface of the mobile phone, we should pay attention to determining the entry parameters, and compare the parameters passed in according to the actual requirements, and don't rashly add unfamiliar functions into the development code.

2. Confirm the return value. If the return value type is judged incorrectly, the wrong process will be adopted in the subsequent processing of the return value, and the API program will not run.

3. Pay attention to debugging in time, understand the form and type of parameters and return values, and continue to build the project after confirmation, which can effectively avoid the abnormal return of the API server interface of the mobile phone.