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我为 sharepoint 2010 开发了 silverlight web 部件。我在 sharepoint 2010 中开发了近 5 个 web 部件。直到昨晚，所有 web 部件在开发机器和服务器上都运行良好。现在我今天启动了我的电脑。我试图在 vs 2010 中运行我的 web 部件。我没有工作。它在 e.Message -The remote server returned an error: NotFound.和 e.StackTrace - 处给出错误

System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state)
   at System.Net.Browser.BrowserHttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
   at Microsoft.SharePoint.Client.ClientRequest.ExecuteQueryGetResponseAsyncCallback(IAsyncResult asyncResult)

以下是我的代码

public void GetAllCompanies(ListItemCollectionDelegate populateMethod)
        {
            CompaniesListItemCollectionDelegate = populateMethod;           

            ClientContext clientContext = ClientContext.Current;
            List list = clientContext.Web.Lists.GetByTitle("Companies");

            companiesListItemCollection = list.GetItems(CamlQuery.CreateAllItemsQuery());
            //clientContext.Load(list);
            clientContext.Load(companiesListItemCollection);
            clientContext.ExecuteQueryAsync(handleAllCompaniesRequestSucceeded, handleAllCompaniesRequestFailed);
        }

        private void handleAllCompaniesRequestSucceeded(object sender, ClientRequestSucceededEventArgs e)
        {
            ////call back on the UI thread
            System.Windows.Deployment.Current.Dispatcher.BeginInvoke(() =>
            {
                CompaniesListItemCollectionDelegate(companiesListItemCollection);
            });
        }

        private void handleAllCompaniesRequestFailed(object sender, ClientRequestFailedEventArgs e)
        {
            System.Windows.Deployment.Current.Dispatcher.BeginInvoke(() =>
            {
                MessageBox.Show("GetAllCompanies Method Error : " + e.Exception);
            });
        }

在上面的代码中，方法中的断点handleAllCompaniesRequestFailed被命中。它执行GetAllCompanies. 我检查了开发机器是否能够在浏览器中访问本地共享点站点。你能告诉我为什么这个 web 部件今天不工作吗？您能否提供我可以解决上述问题的任何代码或链接？

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