日志：
Crashed: com.apple.main-thread
0 Kanopy PROD 0x57000 ActivationScenariogetAutoLoginIfNeeded empty-list String! (ActivationScenario.swift:254)
1 libswiftFoundation.dylib 0x10d30c0 URL.init(string : String) -> URL? (__hidden#6745_)
2 Kanopy PROD 0x57b34 ActivationScenariogetAutoLoginIfNeeded empty-list String! (ActivationScenario.swift)
3 Kanopy PROD 0x1e9fc8 AuthServicegetAutologinUrl empty-list String!userID first-element-marker userIDdestinationuserID (AuthService.swift:228)
4 Kanopy PROD 0x57b98 AuthServicegetAutologinUrl empty-list String!userID first-element-marker userIDdestinationuserID (ActivationScenario.swift)
5 Kanopy PROD 0xa7c40 RequestServicegetAutologinUrl empty-list String!userID first-element-marker userIDdestinationuserID (RequestService.swift:1186)
6 Kanopy PROD 0xa5424 RequestServicegetVideoItem empty-list String!videoID first-element-marker (ItemModel) -> ()completion empty-list completion + 1250340
7 Kanopy PROD 0x92764 @callee_owned (@owned SWGVideoList?, @owned Error?) -> ()Error (RequestService.swift)
8 SwaggerClient 0xa70d01 __100-[SWGAuthApi usersUserIdAutologinGetWithUserId:authorization:destination:hashtag:completionHandler:]_block_invoke (SWGAuthApi.m:928)
9 SwaggerClient 0xa6b69d __178-[SWGApiClient requestWithPath:method:pathParams:queryParams:formParams:files:body:headerParams:authSettings:requestContentType:responseContentType:responseType:completionBlock:]_block_invoke.184 (SWGApiClient.m:242)
10 SwaggerClient 0xa6a21f __56-[SWGApiClient taskWithCompletionBlock:completionBlock:]_block_invoke (SWGApiClient.m:106)
11 Kanopy PROD 0x1bfb50 URLResponse empty-list (SWGApiClientExt.swift)
12 Kanopy PROD 0x1bfecc SWGApiClient.dataTask(with : URLRequest, completionHandler : (URLResponse, Any?, Error?) -> ()?) -> URLSessionDataTask empty-list URLResponse first-element-marker Error (SWGApiClientExt.swift:26)
13 Kanopy PROD 0x1bf7c4 SWGApiClient.dataTask(with : URLRequest, completionHandler : (URLResponse, Any?, Error?) -> ()?) -> URLSessionDataTask empty-list URLResponse first-element-marker Error (SWGApiClientExt.swift)
14 Kanopy PROD 0x1bf87c @callee_owned (@owned URLResponse, @in Any?, @owned Error?) -> ()URLResponse empty-list (SWGApiClientExt.swift)
15 AFNetworking 0x48bb75 __72-[AFURLSessionManagerTaskDelegate URLSession:task:didCompleteWithError:]_block_invoke_2.150 (AFURLSessionManager.m:308)
16 libdispatch.dylib 0x1a5cd797 _dispatch_call_block_and_release + 10
17 libdispatch.dylib 0x1a5cd783 _dispatch_client_callout + 22
18 libdispatch.dylib 0x1a5d1b15 _dispatch_main_queue_callback_4CF + 406
19 CoreFoundation 0x1aebbd69 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 8
20 CoreFoundation 0x1aeb9e19 __CFRunLoopRun + 848
21 CoreFoundation 0x1ae0d1af CFRunLoopRunSpecific + 470
22 CoreFoundation 0x1ae0cfd1 CFRunLoopRunInMode + 104
23 GraphicsServices 0x1c5b7b41 GSEventRunModal + 80
24 UIKit 0x2018fa53 UIApplicationMain + 150
25 Kanopy PROD 0x1810c main (LogExt.swift:20)
26 libdyld.dylib 0x1a5fa4eb start + 2
我在应用程序中使用Swagger客户端（Objective-C）。 我不明白是什么＆＃34; empty-list String！＆＃34;错误。 我针对请求检查了所有必需的字段nil。
此外，在这种情况下，应用程序可以同时发送许多请求。