After iOS Xcode is packaged, logs cannot be output.

After iOS Xcode is packaged, logs cannot be output.

 

Symptom: A project has been well done before. After packaging and generating the ipa file,

When running again, NSLog logs are no longer output.

 

Solution:

In the mode selection, there are two types: "Debug" and "Release". Set "Debug"

 

 

Cause:

In the development process, we often need to use NSLog to output some information, or even some development processes, which must be viewed in the console, experienced programmers can use the console to output the entire data interaction process. However, a released program contains too many NSLog outputs. During packaging, the mode automatically switches to "Release ".