Error at Launch of VS Code with extension enabled: The connection to terminal's pty host process is unresponsive the terminals may stop working

[the-joey-o]

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

I have a brand new computer, new install of windows, and only one extension that's completely unconfigured. Why am I getting this error?
The connection to terminal's pty host process is unresponsive the terminals may stop working

PowerShell Version

Name                           Value
----                           -----
PSVersion                      5.1.19041.2673
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.19041.2673
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

Visual Studio Code Version

1.78.2
x64

Extension Version

ms-vscode.powershell@2023.5.0

Steps to Reproduce

Launch VSCode. Should occur at startup.

Visuals

No response

Logs

5/17/2023 3:45:36 PM [NORMAL] - Visual Studio Code v1.78.2 64-bit

5/17/2023 3:45:36 PM [NORMAL] - Creating log directory at: 'file:///c%3A/Users/jodell/AppData/Roaming/Code/User/globalStorage/ms-vscode.powershell/logs/1684356336-8646b9dc-8b56-4dc7-99b9-6c4f8ee4d03f1684356335339'

5/17/2023 3:45:36 PM [NORMAL] - PowerShell Extension v2023.5.0

5/17/2023 3:45:36 PM [NORMAL] - Operating System: Windows 64-bit

5/17/2023 3:45:37 PM [NORMAL] - Language server starting --

5/17/2023 3:45:37 PM [NORMAL] - PowerShell executable: C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe

5/17/2023 3:45:37 PM [NORMAL] - PowerShell args: -NoProfile -ExecutionPolicy Bypass -Command Import-Module 'c:\Users\jodell.vscode\extensions\ms-vscode.powershell-2023.5.0\modules\PowerShellEditorServices\PowerShellEditorServices.psd1'; Start-EditorServices -HostName 'Visual Studio Code Host' -HostProfileId 'Microsoft.VSCode' -HostVersion '2023.5.0' -AdditionalModules @('PowerShellEditorServices.VSCode') -BundledModulesPath 'c:\Users\jodell.vscode\extensions\ms-vscode.powershell-2023.5.0\modules' -EnableConsoleRepl -StartupBanner "PowerShell Extension v2023.5.0
Copyright (c) Microsoft Corporation.

https://aka.ms/vscode-powershell
Type 'help' to get help.
" -LogLevel 'Normal' -LogPath 'c:\Users\jodell\AppData\Roaming\Code\User\globalStorage\ms-vscode.powershell\logs\1684356336-8646b9dc-8b56-4dc7-99b9-6c4f8ee4d03f1684356335339\EditorServices.log' -SessionDetailsPath 'c:\Users\jodell\AppData\Roaming\Code\User\globalStorage\ms-vscode.powershell\sessions\PSES-VSCode-8496-592897.json' -FeatureFlags @()

5/17/2023 3:45:37 PM [NORMAL] - PowerShell Editor Services args: Import-Module 'c:\Users\jodell.vscode\extensions\ms-vscode.powershell-2023.5.0\modules\PowerShellEditorServices\PowerShellEditorServices.psd1'; Start-EditorServices -HostName 'Visual Studio Code Host' -HostProfileId 'Microsoft.VSCode' -HostVersion '2023.5.0' -AdditionalModules @('PowerShellEditorServices.VSCode') -BundledModulesPath 'c:\Users\jodell.vscode\extensions\ms-vscode.powershell-2023.5.0\modules' -EnableConsoleRepl -StartupBanner "PowerShell Extension v2023.5.0
Copyright (c) Microsoft Corporation.

https://aka.ms/vscode-powershell
Type 'help' to get help.
" -LogLevel 'Normal' -LogPath 'c:\Users\jodell\AppData\Roaming\Code\User\globalStorage\ms-vscode.powershell\logs\1684356336-8646b9dc-8b56-4dc7-99b9-6c4f8ee4d03f1684356335339\EditorServices.log' -SessionDetailsPath 'c:\Users\jodell\AppData\Roaming\Code\User\globalStorage\ms-vscode.powershell\sessions\PSES-VSCode-8496-592897.json' -FeatureFlags @()

5/17/2023 3:45:37 PM [NORMAL] - powershell.exe started.

5/17/2023 3:47:24 PM [NORMAL] - powershell.exe PID: 15272

5/17/2023 3:47:24 PM [NORMAL] - Waiting for session file...

5/17/2023 3:47:54 PM [WARNING] - Loading the PowerShell extension is taking longer than expected. If you're using privilege enforcement software, this can affect start up performance.

5/17/2023 3:51:25 PM [NORMAL] - Timed out waiting for session file to appear!

5/17/2023 3:51:29 PM [ERROR] - PowerShell language server process didn't start!

[andyleejordan]

Seems like you have a version that should work.

Could you please provide more logging and environment information by following these steps?

Specifically I'm looking for any logs produced by PSES (the server / PowerShell process) to see how far along it got starting up.

Thanks!

[the-joey-o]

5/18/2023 8:31:53 AM [DIAGNOSTIC] - Global storage URI: 'vscode-userdata:/c%3A/Users/jodell/AppData/Roaming/Code/User/globalStorage/ms-vscode.powershell', log file path: 'file:///c%3A/Users/jodell/AppData/Roaming/Code/User/globalStorage/ms-vscode.powershell/logs/1684416713-a9fc9243-336d-40f5-a653-a94da5d0a2011684416708327/vscode-powershell.log'

5/18/2023 8:31:53 AM [DIAGNOSTIC] - Loaded settings:
{
"powerShellAdditionalExePaths": {},
"powerShellDefaultVersion": "",
"powerShellExePath": "",
"promptToUpdatePowerShell": true,
"startAsLoginShell": {
"osx": true,
"linux": false
},
"startAutomatically": true,
"enableProfileLoading": true,
"helpCompletion": "BlockComment",
"scriptAnalysis": {
"enable": true,
"settingsPath": "PSScriptAnalyzerSettings.psd1"
},
"debugging": {
"createTemporaryIntegratedConsole": false
},
"developer": {
"featureFlags": [],
"bundledModulesPath": "../../PowerShellEditorServices/module",
"editorServicesLogLevel": "Diagnostic",
"editorServicesWaitForDebugger": false,
"waitForSessionFileTimeoutSeconds": 240
},
"codeFormatting": {
"autoCorrectAliases": false,
"avoidSemicolonsAsLineTerminators": false,
"preset": "Custom",
"openBraceOnSameLine": true,
"newLineAfterOpenBrace": true,
"newLineAfterCloseBrace": true,
"pipelineIndentationStyle": "NoIndentation",
"whitespaceBeforeOpenBrace": true,
"whitespaceBeforeOpenParen": true,
"whitespaceAroundOperator": true,
"whitespaceAfterSeparator": true,
"whitespaceBetweenParameters": false,
"whitespaceInsideBrace": true,
"addWhitespaceAroundPipe": true,
"trimWhitespaceAroundPipe": false,
"ignoreOneLineBlock": true,
"alignPropertyValuePairs": true,
"useConstantStrings": false,
"useCorrectCasing": false
},
"integratedConsole": {
"showOnStartup": true,
"startInBackground": false,
"focusConsoleOnExecute": false,
"useLegacyReadLine": false,
"forceClearScrollbackBuffer": false,
"suppressStartupBanner": false
},
"sideBar": {
"CommandExplorerVisibility": true,
"CommandExplorerExcludeFilter": []
},
"pester": {
"useLegacyCodeLens": true,
"outputVerbosity": "FromPreference",
"debugOutputVerbosity": "Diagnostic"
},
"buttons": {
"showRunButtons": true,
"showPanelMovementButtons": true
},
"cwd": "",
"enableReferencesCodeLens": true,
"analyzeOpenDocumentsOnly": false
}

5/18/2023 8:31:53 AM [DIAGNOSTIC] - Creating log directory at: 'file:///c%3A/Users/jodell/AppData/Roaming/Code/User/globalStorage/ms-vscode.powershell/logs/1684416713-a9fc9243-336d-40f5-a653-a94da5d0a2011684416708327'

5/18/2023 8:31:53 AM [NORMAL] - Visual Studio Code v1.78.2 64-bit

5/18/2023 8:31:53 AM [NORMAL] - PowerShell Extension v2023.5.0

5/18/2023 8:31:53 AM [NORMAL] - Operating System: Windows 64-bit

5/18/2023 8:31:53 AM [NORMAL] - Language server starting --

5/18/2023 8:31:53 AM [NORMAL] - PowerShell executable: C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe

5/18/2023 8:31:53 AM [NORMAL] - PowerShell args: -NoProfile -ExecutionPolicy Bypass -Command Import-Module 'c:\Users\jodell.vscode\extensions\ms-vscode.powershell-2023.5.0\modules\PowerShellEditorServices\PowerShellEditorServices.psd1'; Start-EditorServices -HostName 'Visual Studio Code Host' -HostProfileId 'Microsoft.VSCode' -HostVersion '2023.5.0' -AdditionalModules @('PowerShellEditorServices.VSCode') -BundledModulesPath 'c:\Users\jodell.vscode\extensions\ms-vscode.powershell-2023.5.0\modules' -EnableConsoleRepl -StartupBanner "PowerShell Extension v2023.5.0
Copyright (c) Microsoft Corporation.

https://aka.ms/vscode-powershell
Type 'help' to get help.
" -LogLevel 'Diagnostic' -LogPath 'c:\Users\jodell\AppData\Roaming\Code\User\globalStorage\ms-vscode.powershell\logs\1684416713-a9fc9243-336d-40f5-a653-a94da5d0a2011684416708327\EditorServices.log' -SessionDetailsPath 'c:\Users\jodell\AppData\Roaming\Code\User\globalStorage\ms-vscode.powershell\sessions\PSES-VSCode-16148-872537.json' -FeatureFlags @()

5/18/2023 8:31:53 AM [NORMAL] - PowerShell Editor Services args: Import-Module 'c:\Users\jodell.vscode\extensions\ms-vscode.powershell-2023.5.0\modules\PowerShellEditorServices\PowerShellEditorServices.psd1'; Start-EditorServices -HostName 'Visual Studio Code Host' -HostProfileId 'Microsoft.VSCode' -HostVersion '2023.5.0' -AdditionalModules @('PowerShellEditorServices.VSCode') -BundledModulesPath 'c:\Users\jodell.vscode\extensions\ms-vscode.powershell-2023.5.0\modules' -EnableConsoleRepl -StartupBanner "PowerShell Extension v2023.5.0
Copyright (c) Microsoft Corporation.

https://aka.ms/vscode-powershell
Type 'help' to get help.
" -LogLevel 'Diagnostic' -LogPath 'c:\Users\jodell\AppData\Roaming\Code\User\globalStorage\ms-vscode.powershell\logs\1684416713-a9fc9243-336d-40f5-a653-a94da5d0a2011684416708327\EditorServices.log' -SessionDetailsPath 'c:\Users\jodell\AppData\Roaming\Code\User\globalStorage\ms-vscode.powershell\sessions\PSES-VSCode-16148-872537.json' -FeatureFlags @()

5/18/2023 8:31:54 AM [NORMAL] - powershell.exe started.

5/18/2023 8:33:50 AM [NORMAL] - powershell.exe PID: 18820

5/18/2023 8:33:50 AM [NORMAL] - Waiting for session file...

5/18/2023 8:34:20 AM [WARNING] - Loading the PowerShell extension is taking longer than expected. If you're using privilege enforcement software, this can affect start up performance.

[the-joey-o]

A couple more logs were written after a few more minutes:

5/18/2023 8:37:51 AM [NORMAL] - Timed out waiting for session file to appear!

5/18/2023 8:37:55 AM [ERROR] - PowerShell language server process didn't start!

[andyleejordan]

When you open the PowerShell Extension Logs folder, there should be a log file called EditorServices.log that has what I'm hoping to see, especially if you managed to set it the logging level to Diagnostic: "powershell.developer.editorServicesLogLevel": "Diagnostic"

[the-joey-o]

I have the PowerShell Editor Services Log Level set to Diagnostic, but the log is empty.

[andyleejordan]

Hm, ok. Can you try PowerShell 7? That'll at least help us determine if it's specific to PowerShell 5.1 or something else.

[the-joey-o]

Switching to Version 7 seems to have fixed the problem.

[andyleejordan]

That's helpful, thank you! So I've spent the last week revamping our logging and start/stop/restart logic. When I get a new preview out I will have you test again, it'll probably repro still but I'm hoping we'll have a lot more information available to track it down.