Who can tell me how to use the upload of seven cows? There have always been mistakes.

  ios, question

<QNResponseInfo= id: 1443407381240550, status: -4, requestId: (null), xlog: (null), xvia: (null), host: (null) ip: (null) duration: 0.000000 s time: 1443407381 error: Error Domain=NSCocoaErrorDomain Code=260 “The operation couldn’t be completed. (Cocoa error 260.)” UserInfo=0xf7bc5c0 {NSFilePath=, NSUnderlyingError=0xf7bc4c0 “The operation couldn’t be completed. No such file or directory”}>

No upload path specified, please look at this document.http://developer.qiniu.com/docs/v6/api/reference/up/upload.html#method