The GVFS.Service tries to auto-mount all repos in the registry, and complains when a repo is not working. However, it does not remove that from the list. This includes repositories that are deleted.

We should keep these notifications for repos that are present but somehow corrupt. They might be fixable with gvfs repair.

However, if the directory does not even exist, then we should ignore it. We can perform a quick check in RepoRegistry.GetActiveReposForUser() to filter out such non-existent repos.