尝试使用Jenkins运行Sonarqube MSBuild Runner时出现以下错误。我正在使用SonarQube 4.5和MSBuild
SonarQube Runner 1.1。有关如何解决的任何建议？

Unhandled Exception: System.Net.WebException: The remote server returned an error: (401) Unauthorized.
   at System.Net.WebClient.DownloadDataInternal(Uri address, WebRequest& request)
   at System.Net.WebClient.DownloadString(Uri address)
   at System.Net.WebClient.DownloadString(String address)
   at SonarQube.TeamBuild.PreProcessor.WebClientDownloader.Download(String url)
   at SonarQube.TeamBuild.PreProcessor.SonarWebService.GetProperties(String projectKey)
   at SonarQube.TeamBuild.PreProcessor.TeamBuildPreProcessor.FetchArgumentsAndRulesets(ProcessedArgs args, TeamBuildSettings settings, ILogger logger, IDictionary`2& serverSettings)
   at SonarQube.TeamBuild.PreProcessor.TeamBuildPreProcessor.DoExecute(ProcessedArgs args, ILogger logger)
   at SonarQube.TeamBuild.PreProcessor.TeamBuildPreProcessor.Execute(String[] args, ILogger logger)
   at SonarQube.TeamBuild.PreProcessor.Program.Main(String[] args)
Pre-processing succeeded.