Error Domain=NSCocoaErrorDomain Code=3840 "The operation couldn’t be completed. (Cocoa error 3840.)" (JSON text did not start with array or object and option to allow fragments not set.) UserInfo=0x9152780 {NSDebugDescription=JSON text did not start with array or object and option to allow fragments not set.}Error Domain=NSCocoaErrorDomain Code=3840 "The
阅读背景：
解决AFN的post请求错误：Error Domain=NSCocoaErrorDomain Code=3840
来源：互联网
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