Unable to convert data to string around character 11.

IOSÎÊÌâ：  2015-08-04 09:05:12.941 EnquiryGreens-v1.0[512:6068] error:Error Domain=NSCocoaErrorDomain Code=3840 "The operation couldn¡¯t be completed. (Cocoa error 3840.)" (Unable to convert data to string around character 11.) UserInfo=0x7fab3e1ad580 {NSDebugDescription=Unable to convert data to string around character 11.}   

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