Symptom: ClickOnce installation starts and stops after around 600 kB (out of 2 MB).
Progress bar always stops at the same value (tried ten times).
Error log says that The operation has timed out (in inner exception) and fails with "DeploymentDownloadException (Unknown subtype)".
Error log details (irrelevant information trimmed):
ERROR DETAILS
Following errors were detected during this operation.
System.Deployment.Application.DeploymentDownloadException (Unknown subtype)
- Downloading http://fullpath/name.dll.deploy did not succeed.
- Source: System.Deployment
- Stack trace: at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(Downloa
dQueueItem next)
at
System.Deployment.Application.SystemNetDownloader.DownloadAllFiles()
at
System.Deployment.Application.FileDownloader.Download(SubscriptionState
subState)
--- Inner Exception ---
System.Net.WebException
- The operation has timed out.
- Source: System
- Stack trace:
at System.Net.ConnectStream.Read(Byte[] buffer,
Int32 offset, Int32 size)
at
System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(Downloa
dQueueItem next)
This only happens for two customers. The install works OK for thousands of others. I have found numerous posts via google with no answer or generic "firewall is the issue" or "customer was using dialup".
Has anyone solved this? Is this a ClickOnce bug?