Getting warning in iPhone: NSString may not respond to '-JSONValue'

Question

In my iPhone app, I am making an access to the webserver to fetch the data.

Here I am using JSON to retrieve the data from database.

I get a warning that says:

NSString may not respond to '-JSONValue'

How to resolve it?

Answer 1

在.m或.h文件的顶部添加#import "JSON.h" 。

Answer 2

您是否尝试将JSON库添加到项目中并导入它

#import "JSON/JSON.h"

Answer 3

你可能只是错过了你的JSON库的包含