Common dnvm upgrade exception: Cannot remove item ...\.dnx\runtimes\temp\_rels\: The directory is not empty.

[guardrex]

Platform: Win7
DNVM: v1.0.0-beta5-10371

This exception is fairly common for me on command:

dnvm upgrade -r coreclr -arch x64 -Unstable

Output:

Determining latest version
Downloading dnx-coreclr-win-x64.1.0.0-beta5-11631 from https://www.myget.org/F/aspnetvnext/api/v2
Remove-Item : Cannot remove item ...\.dnx\runtimes\temp\_rels\: The directory is not empty.
At ...\.dnx\bin\dnvm.ps1:605 char:9
* Remove-Item -LiteralPath ($UnpackFolder + "\rels\") -Force -Recurse
* CategoryInfo : WriteError: (...\.dnx\runtimes\temp\_rels\:DirectoryInfo) [Remove-Item], IOException + FullyQualifiedErrorId: RemoveFileSystemItemIOError,Microsoft.PowerShell.Commands.RemoveItemCommand

... proceeds normally after that ... adds to PATH ... compiles native images ... updates alias.