Debugging hangs when Import-Excel attempts to access an open file

System Details

System Details Output

### VSCode version: 1.49.1 58bb7b2331731bf72587010e943852e13e6fd3cf x64

### VSCode extensions:
alefragnani.Bookmarks@11.3.1
anseki.vscode-color@0.4.5
christian-kohler.path-intellisense@2.3.0
CoenraadS.bracket-pair-colorizer@1.0.61
Damien.autoit@1.0.5
DavidAnson.vscode-markdownlint@0.36.3
DotJoshJohnson.xml@2.5.1
forevolve.git-extensions-for-vs-code@1.1.3
Gruntfuggly.todo-tree@0.0.178
hdg.live-html-previewer@0.3.0
KnisterPeter.vscode-github@0.30.4
mathiasfrohlich.Kotlin@1.7.1
mechatroner.rainbow-csv@1.7.1
ms-dotnettools.csharp@1.23.2
ms-mssql.mssql@1.9.0
ms-python.python@2020.8.109390
ms-vscode-remote.remote-wsl@0.44.5
ms-vscode.cmake-tools@1.4.2
ms-vscode.cpptools@1.0.1
ms-vscode.powershell@2020.6.0
ms-vscode.powershell-preview@2020.9.0
msjsdiag.debugger-for-chrome@4.12.11
naco-siren.gradle-language@0.2.3
nobuhito.printcode@3.0.0
oderwat.indent-rainbow@7.4.0
platformio.platformio-ide@2.1.0
plex.vscode-protolint@0.5.0
redhat.java@0.67.0
scala-lang.scala@0.4.3
slevesque.vscode-autohotkey@0.2.2
slevesque.vscode-hexdump@1.8.1
SzczepanMejer.bgscript-support@0.1.0
twxs.cmake@0.0.17
Tyriar.lorem-ipsum@1.2.0
VisualStudioExptTeam.vscodeintellicode@1.2.10
vscjava.vscode-java-debug@0.28.0
vscjava.vscode-java-dependency@0.13.0
vscjava.vscode-java-pack@0.10.0
vscjava.vscode-java-test@0.24.2
vscjava.vscode-maven@0.24.2
yzane.markdown-pdf@1.4.4
yzhang.markdown-all-in-one@3.3.0
zxh404.vscode-proto3@0.4.2


### PSES version: 2.2.0.0

### PowerShell version:

Name                           Value
----                           -----
PSVersion                      7.0.3
PSEdition                      Core
GitCommitId                    7.0.3
OS                             Microsoft Windows 10.0.17763
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

Issue Description

Take the following script:

$data = import-excel (join-path -Path $env:OneDriveCommercial -childpath "Documents\testfile.xlsx")
if ($null -eq $data)
{
    Write-Host -ForegroundColor Red ("Import-Excel returns $null")
}
else {
    Write-Host("Count: {0}" -f $data)
    $data
}

If I run this script within VS Code, and Import-Excel fails because the file is open in Excel, I get:

and then VS Code hangs.

This occurs even if I set a breakpoint on the second line of the script.

Note: if the same script is run in a standard PowerShell 7.0.3 console, the script doesn’t continue execution after the first line, but the user is returned to the PowerShell prompt:

Expected Behaviour

The error should be reported, and the script should continue (or the breakpoint at the second line should be hit)

Actual Behaviour

VS Code hangs. A restart is required.

Ctrl+C won’t help because this will yield the same behavior as in https://github.com/PowerShell/vscode-powershell/issues/2713 (sort of endless prompt display).

Attached Logs

logs.zip

[sba923]

Nope, my profile doesn’t redefine Out-Default

I think I can interact with about everything: the editor, menus, the Explorer/Search/Extensions… panes, the debug console… basically anything except for the Terminal and the Run (debugging) pane.

And I can close VS code using the top-right X 😉

[andschwa]

Hey! There’s been a lot of changes (for better or worse) to the extension since September, 2020. Please test the latest preview extension and re-open this if it still recurs!