Request failed: unacceptable content-type: text/html

When parsing data using YTKNetWorking today, the error message "Request failed: unacceptable content-type: text/html" is returned -----

"Request failed: Unacceptable content type: text/html", after investigation, add the response value around line 230 of "AFURLResponseSerialization.h"

@"application/json", @"text/json", @"text/javascript",@"text/plain",@"text/html",@"application/problem+json"