iOS 图片成功上传到七牛后 resp返回null

Question

info==><QNResponseInfo= id: 137BCAA4-0651-4469-BF1D-F7BF1327B078, ver: 7.0.16, status: 200, requestId: 8AEAABcpAWA8ljgU, xlog: s.ph;s.put.tw;s.put.tr;s.put.tw;s.put.tr;s.ph;s.put.tw;s.put.tr:1;s.ph;PFDS:2;PFDS:4;PFDS:5;rs18_4.sel/not found;rs17_4.sel/not found;rdb.g/no such key;DBD/404;v4.get/Document not found;rs18_4.ins;qtbl.ins:1;mc.s;RS:2;rs.put:4;rs-upload.putFile:10;FOPAGENT;IMAGE:5;FOPAGENT:6;FOPAGENT;IMAGE:5;FOPAGENT:6;FOPG:6;FOPAGENT;UP:20, xvia: (null), host: upload.qiniu.com ip: 115.231.182.136 duration: 0.110694 s time: 1457079665 error: (null)>

resp==>(null)

在七牛空间中看图片是已经成功上传的