Article ID: 983088 - View products that this article applies to.
Consider the following scenario:
************** Exception Text **************
System.Deployment.Application.DeploymentDownloadException: Downloading http://Server_name/Lists/PC/ClientSolution/GUID.vsto did not succeed. ---> System.Net.WebException: The remote server returned an error: (401) Unauthorized.
at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next)
---- End of inner exception stack trace ---
at Microsoft.VisualStudio.Tools.Applications.Deployment.ClickOnceAddInDeploymentManager.GetManifests(TimeSpan timeout)
This issue occurs when the user account that you use to log on to the SharePoint 2010 server differs from the user account that you use to log on to the client computer.
To work around this issue, you must use the same user account to log on to both the client computer and the SharePoint 2010 server.