当我得到这个异常时,我正在尝试从一个 silverlight 项目的 TweetSharp 库中读取公共时间线。
Unhandled Error in Silverlight Application
Code: 4004
Category: ManagedRuntimeError
Message: System.Security.SecurityException ---> System.Security.SecurityException: Security error.
at System.Net.Browser.ClientHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult)
at System.Net.Browser.ClientHttpWebRequest.<>c__DisplayClass5.<EndGetResponse>b__4(Object sendState)
at System.Net.Browser.AsyncHelper.<>c__DisplayClass2.<BeginOnUI>b__0(Object sendState)
--- End of inner exception stack trace ---
at System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state)
at System.Net.Browser.ClientHttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
at Hammock.Web.WebQuery.GetAsyncResponseCallback(IAsyncResult asyncResult)
at System.Net.Browser.ClientHttpWebRequest.<>c__DisplayClassd.<InvokeGetResponseCallback>b__b(Object state2)
at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()
Twitter 为 clientaccesspolicy.xml 文件抛出 404,但 crossdomain.xml 文件被提取得很好。
发出请求的代码如下:
var tweets =
FluentTwitter.CreateRequest(new TweetSharp.TwitterClientInfo()).Statuses().OnPublicTimeline().AsJson().
CallbackTo((sndr, args, state) =>
{
var statuses = args.AsStatuses();
foreach (TwitterStatus status in statuses)
{
_statuses.Add(status);
}
});
tweets.BeginRequest();
这是一个错误还是我做错了什么?