-[AVHTTPClient enqueueHTTPRequestOperation:] curl -i -k -X GET --compressed -H 'x-avoscloud-request-sign: fc327131b4e6cc7efe3237702450bdc2,1434109206264' -H 'X-avoscloud-Application-Id: m5wdxm8ygse8q5zbe5zyq028gqv8t9nlt58cvvpa9todp215' -H 'Accept: application/json' -H 'User-Agent: AVOS Cloud iOS-v3.0.0 SDK' -H 'X-avoscloud-Application-Production: 1' "https://api.leancloud.cn/1.1/users/10003"
11:40:06.0314 {number = 9, name = (null)} | _54-[AVPaasClient goRequest:saveResult:block:retryTimes:]block_invoke379 [Line 543]
Error (0.050s)
Error Domain=AVNetworkingErrorDomain Code=-1011 "Expected status code in (200-299), got 400" UserInfo=0x1740fd400 {AVNetworkingOperationFailingURLResponseErrorKey= { URL: https://api.leancloud.cn/1.1/users/10003 } { status code: 400, headers {
"Cache-Control" = "no-cache,no-store";
"Content-Length" = 42;
"Content-Type" = "application/json;charset=utf-8";
Date = "Fri, 12 Jun 2015 11:40:06 GMT";
Pragma = "no-cache";
Server = Tengine;
} }, NSLocalizedRecoverySuggestion={"code":211,"error":"Could not find user"}, NSErrorFailingURLKey=https://api.leancloud.cn/1.1/users/10003, AVNetworkingOperationFailingURLRequestErrorKey= { URL: https://api.leancloud.cn/1.1/users/10003 }, NSLocalizedDescription=Expected status code in (200-299), got 400}
11:40:06.0316 {number = 9, name = (null)} | +[AVErrorUtils errorFromJSON:] [Line 192] error: Error Domain=AVOS Cloud Error Domain Code=211 "Could not find user" UserInfo=0x170464bc0 {error=Could not find user, NSLocalizedDescription=Could not find user, code=211}

第一次加入一个开放聊天室后，会报错，之后就不会了，这是为什么呢，求解答