Error: connect ETIMEDOUT \\.\pipe\... when debug

Microsoft.VSCode_profile.ps1 と Microsoft.PowerShell_profile.ps1 を使い、prompt 関数に breakpoint を設定した状態でシーケンスを再現し、別のプロファイルを source しない場合と比較します。まず、拡張機能のデバッグ Run/Stop ライフサイクルと、報告されている named-pipe timeout を確認します。VS Code を再起動しなくても、繰り返し実行して connect ETIMEDOUT や CPU 使用率の高さが発生しなくなれば完了です。

Prerequisites

• I have written a descriptive issue title.
• I have searched all open and closed issues to ensure it has not already been reported.
• I have read the troubleshooting guide.
• I am sure this issue is with the extension itself and does not reproduce in a standalone PowerShell instance.
• I have verified that I am using the latest version of Visual Studio Code and the PowerShell extension.
• If this is a security issue, I have read the security issue reporting guidance.

Summary

Third debug of Powershell (with manually stop debug and source another ps1 file) cause connect etimedout

PowerShell Version

Name                           Value
----                           -----
PSVersion                      7.5.4
PSEdition                      Core
GitCommitId                    7.5.4
OS                             Microsoft Windows 10.0.26200
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

Name             : ConsoleHost
Version          : 7.5.4
InstanceId       : b97c2998-5772-43c3-b18a-31653b2db7ee
UI               : System.Management.Automation.Internal.Host.InternalHostUserInterface
CurrentCulture   : zh-CN
CurrentUICulture : zh-CN
PrivateData      : Microsoft.PowerShell.ConsoleHost+ConsoleColorProxy
DebuggerEnabled  : True
IsRunspacePushed : False
Runspace         : System.Management.Automation.Runspaces.LocalRunspace

Visual Studio Code Version

PS> code --version
1.105.1
7d842fb85a0275a4a8e4d7e040d2625abbf7f084
x64

Extension Version

PS> code --list-extensions --show-versions | Select-String powershell

ms-vscode.powershell@2025.4.0

Steps to Reproduce

• In C:\Users\<user_name>\Documents\PowerShell\Microsoft.VSCode_profile.ps1

. "C:\Users\<user_name>\Documents\PowerShell\Microsoft.PowerShell_profile.ps1"

• In C:\Users\<user_name>\Documents\PowerShell\Microsoft.PowerShell_profile.ps1

function prompt {
    Write-Host “===” # here has breakpoint
    Write-Host ">" -NoNewline
    return " "
}

• Add breakpoint (like screenshot below)

• FIRST TIME Click Run button on the right corner of VSCode and everything works fine, then click Stop button in the middle of debug panel.

• SECOND TIME Click Run button then click Stop button, this time it takes longer for debug process to stop

• THIRD TIME Click Run button, after sometime error comes connect etimedout. And maybe result in high CPU usage.

any run debug try after that cause the same error unless restart VSCode

not sourcing another .ps1 in Microsoft.VSCode_profile.ps1 and debug, everthing works well.

Visuals

Logs

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