Language server startup failed: PowerShellEditorServices missing.

[deathly809]

System Details

• Operating system name and version:
  Ubuntu 16.04

• VS Code version:
  1.12.2

• PowerShell extension version:
  1.1.0

• Output from $PSVersionTable:
  Name Value

---

PSVersion 6.0.0-alpha
PSEdition Core
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
BuildVersion 3.0.0.0
GitCommitId v6.0.0-alpha.14
CLRVersion
WSManStackVersion 3.0
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1

Copy / paste the below commands into the PowerShell Integrated Terminal, and paste the output here

code -v
1.12.2
19222cdc84ce72202478ba1cec5cb557b71163de

$pseditor.EditorServicesVersion
Nothing

code --list-extensions --show-versions
austin.code-gnu-global@0.2.2
donjayamanne.githistory@0.2.0
donjayamanne.javadebugger@0.1.0
donjayamanne.python@0.6.4
goessner.mdmath@1.2.9
lukehoban.Go@0.6.61
mathiasfrohlich.latexcompile@0.7.0
ms-vscode.cpptools@0.11.1
ms-vscode.csharp@1.9.0
ms-vscode.latex@0.1.3
ms-vscode.PowerShell@1.1.0
redhat.java@0.4.0
streetsidesoftware.code-spell-checker@1.1.0
tomoki1207.pdf@0.2.0

$PSVersionTable
Name                           Value                                                                                                                                                                               
----                           -----                                                                                                                                                                               
PSVersion                      6.0.0-alpha                                                                                                                                                                         
PSEdition                      Core                                                                                                                                                                                
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}                                                                                                                                                             
BuildVersion                   3.0.0.0                                                                                                                                                                             
GitCommitId                    v6.0.0-alpha.14                                                                                                                                                                     
CLRVersion                                                                                                                                                                                                         
WSManStackVersion              3.0                                                                                                                                                                                 
PSRemotingProtocolVersion      2.3                                                                                                                                                                                 
SerializationVersion           1.1.0.1 

Issue Description

When I start up VSCode the Powershell Language Server fails to load. There is an error message in the 'PowerShell Integrated Terminal" but it is erased before I can read it. I took a screenshot of this error (after many attempts) and attached in zip file. There is no useful error message in the logs, maybe this should be fixed (another bug report?).

Attached Logs

BugReport.zip

[daviwil]

Thanks @deathly809! Sorry for the trouble with getting that error message, the terminal is supposed to stay open for a bit on error so that you can copy it. I think I missed a case in the startup script which didn't catch this error case.

Can you give me the output of running these commands in PowerShell outside of VS Code:

gci $HOME/.vscode/extensions/ms-vscode.PowerShell-1.1.0/modules
Get-Module -ListAvailable $HOME/.vscode/extensions/ms-vscode.PowerShell-1.1.0/modules/PowerShellEditorServices/PowerShellEditorServices.psd1
Get-Module -ListAvailable

[deathly809]

gci $HOME/.vscode/extensions/ms-vscode.PowerShell-1.1.0/modules

gci : Cannot find path '/home/jeffrey/.vscode/extensions/ms-vscode.PowerShell-1.1.0/modules' because it does not exist.
At line:1 char:1
+ gci $HOME/.vscode/extensions/ms-vscode.PowerShell-1.1.0/modules
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (/home/jeffrey/....l-1.1.0/modules:String) [Get-ChildItem], ItemNotFoundException
    + FullyQualifiedErrorId : PathNotFound,Microsoft.PowerShell.Commands.GetChildItemCommand

Get-Module -ListAvailable $HOME/.vscode/extensions/ms-vscode.PowerShell-1.1.0/modules/PowerShellEditorServices/PowerShellEditorServices.psd1

    Directory: /home/jeffrey/.vscode/extensions/ms-vscode.PowerShell-1.1.0/modules


ModuleType Version    Name                                ExportedCommands                                                                                                                                         
---------- -------    ----                                ----------------                                                                                                                                         
Manifest   0.0        PowerShellEditorServices                                   

Get-Module -ListAvailable

    Directory: /home/jeffrey/.local/share/powershell/Modules


ModuleType Version    Name                                ExportedCommands                                                                                                                                         
---------- -------    ----                                ----------------                                                                                                                                         
Script     3.3.9      InvokeBuild                         {Invoke-Build, Invoke-Builds}                                                                                                                            


    Directory: /opt/microsoft/powershell/6.0.0-alpha.14/Modules


ModuleType Version    Name                                ExportedCommands                                                                                                                                         
---------- -------    ----                                ----------------                                                                                                                                         
Manifest   1.0.1.0    Microsoft.PowerShell.Archive        {Compress-Archive, Expand-Archive}                                                                                                                       
Manifest   3.0.0.0    Microsoft.PowerShell.Host           {Start-Transcript, Stop-Transcript}                                                                                                                      
Manifest   3.1.0.0    Microsoft.PowerShell.Management     {Add-Content, Clear-Content, Clear-ItemProperty, Join-Path...}                                                                                           
Manifest   3.0.0.0    Microsoft.PowerShell.Security       {Get-Credential, Get-ExecutionPolicy, Set-ExecutionPolicy, ConvertFrom-SecureString...}                                                                  
Manifest   3.1.0.0    Microsoft.PowerShell.Utility        {Format-List, Format-Custom, Format-Table, Format-Wide...}                                                                                               
Script     1.1.2.0    PackageManagement                   {Find-Package, Get-Package, Get-PackageProvider, Get-PackageSource...}                                                                                   
Script     3.3.9      Pester                              {Describe, Context, It, Should...}                                                                                                                       
Script     1.1.2.0    PowerShellGet                       {Install-Module, Find-Module, Save-Module, Update-Module...}                                                                                             
Script     0.0        PSDesiredStateConfiguration         {IsHiddenResource, StrongConnect, Write-MetaConfigFile, Get-InnerMostErrorRecord...}                                                                     
Script     1.2        PSReadLine                          {Get-PSReadlineKeyHandler, Set-PSReadlineKeyHandler, Remove-PSReadlineKeyHandler, Get-PSReadlineOption...}                                               

[daviwil]

Something is wrong here, the modules folder should not be empty. How did you install the extension, via the VS Code Extensions pane? Can you give me the output of this command:

gci $HOME/.vscode/extensions/ms-vscode.PowerShell-1.1.0/

[deathly809]

I installed through VSCode.

I see the problem, it is lowercase on Linux (powershell, not PowerShell). Here is the original command with lowercase PowerShell

    Directory: /home/jeffrey/.vscode/extensions/ms-vscode.powershell-1.1.0/modules


Mode                LastWriteTime         Length Name                                                                                                                                                              
----                -------------         ------ ----                                                                                                                                                              
d-----          5/21/17  11:59 AM                Plaster                                                                                                                                                           
d-----          5/21/17  11:59 AM                PowerShellEditorServices                                                                                                                                          
d-----          5/21/17  11:59 AM                PSScriptAnalyzer                                                                                                                                                  
------          5/21/17  11:59 AM            370 README.md                                                                                                                                                         

[daviwil]

Hmmm, that's strange, I wonder if VS Code changed how they deal with paths when they install extensions. Thanks for pointing this out, I'll try to get it fixed soon!

[daviwil]

By the way, was this working for you successfully in the past or is this the first time you've tried to use VS Code and the PowerShell extension on Ubuntu?

[deathly809]

I have only just started using it and I don't recall it ever working.

[lennyi]

I believe I'm having a similar issue on OS X 10.12.5.

> code -v
1.12.2
19222cdc84ce72202478ba1cec5cb557b71163de

> $PSVersionTable

Name                           Value
----                           -----
PSVersion                      6.0.0-alpha
PSEdition                      Core
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   3.0.0.0
GitCommitId                    v6.0.0-alpha.15
CLRVersion
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

The language service fails to initialize with the following error:

[18:10:39] Language server starting...
powershell.exe started --
    pid: 6638
    exe: /usr/local/bin/powershell
    args: /Users/jondoe/.vscode/extensions/ms-vscode.powershell-1.1.0/scripts/Start-EditorServices.ps1 -EditorServicesVersion '1.1.0' -HostName 'Visual Studio Code Host' -HostProfileId 'Microsoft.VSCode' -HostVersion '1.1.0' -BundledModulesPath '/Users/jondoe/.vscode/extensions/ms-vscode.powershell-1.1.0/modules' -EnableConsoleRepl -LogLevel 'Verbose' -LogPath '/Users/jondoe/.vscode/extensions/ms-vscode.powershell-1.1.0/logs/1495494639-7f30055a-a94f-440a-82d8-b65de35598461495494607366/EditorServices.log' -SessionDetailsPath '/Users/jondoe/.vscode/extensions/ms-vscode.powershell-1.1.0/sessions/PSES-VSCode-6535-612054' -FeatureFlags @()



powershell.exe terminated or terminal UI was closed

[18:11:39] Language server startup failed.
Could not start language service: 
Timed out waiting for session file to appear.

I've had this behavior since I installed the extension a few weeks back and just now got around to troubleshooting it. When I run the Start-EditorServices.ps1 script from my terminal this is my output:

> /Users/jondoe/.vscode/extensions/ms-vscode.powershell-1.1.0/scripts/Start-EditorServices.ps1 -EditorServicesVersion '1.1.0' -HostName 'Visual Studio Code Host' -HostProfileId 'Microsoft.VSCode' -HostVersion '1.1.0' -BundledModulesPath '/Users/jondoe/.vscode/extensions/ms-vscode.powershell-1.1.0/modules' -EnableConsoleRepl -LogLevel 'Verbose' -LogPath '/Users/jondoe/.vscode/extensions/ms-vscode.powershell-1.1.0/logs/1495494639-7f30055a-a94f-440a-82d8-b65de35598461495494607366/EditorServices.log' -SessionDetailsPath '/Users/jondoe/.vscode/extensions/ms-vscode.powershell-1.1.0/sessions/PSES-VSCode-6535-612054' -FeatureFlags @()
needs_install
Import-Module : The specified module 'PowerShellEditorServices' with version '1.1.0' was not loaded because no valid module file
was found in any module directory.
At /Users/jondoe/.vscode/extensions/ms-vscode.powershell-1.1.0/scripts/Start-EditorServices.ps1:208 char:5
+     Import-Module PowerShellEditorServices -RequiredVersion $parsedVe ...
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ResourceUnavailable: (PowerShellEditorServices:String) [Import-Module], FileNotFoundException
    + FullyQualifiedErrorId : Modules_ModuleWithVersionNotFound,Microsoft.PowerShell.Commands.ImportModuleCommand

Output from Get-module:

> gci $HOME/.vscode/extensions/ms-vscode.PowerShell-1.1.0/modules


    Directory: /Users/jondoe/.vscode/extensions/ms-vscode.PowerShell-1.1.0/modules


Mode                LastWriteTime         Length Name
----                -------------         ------ ----
d-----          5/22/17   6:09 PM                Plaster
d-----          5/22/17   6:09 PM                PowerShellEditorServices
d-----          5/22/17   6:09 PM                PSScriptAnalyzer
------          5/22/17   6:09 PM            370 README.md

> Get-Module -ListAvailable $HOME/.vscode/extensions/ms-vscode.PowerShell-1.1.0/modules/PowerShellEditorServices/PowerShellEditorServices.psd1


    Directory: /Users/jondoe/.vscode/extensions/ms-vscode.PowerShell-1.1.0/modules


ModuleType Version    Name                                ExportedCommands
---------- -------    ----                                ----------------
Script     1.1.0      PowerShellEditorServices            {Start-EditorServicesHost, Get-PowerShellEditorServicesVersion, Compre...


> get-module -ListAvailable


    Directory: /Users/jondoe/.local/share/powershell/Modules


ModuleType Version    Name                                ExportedCommands
---------- -------    ----                                ----------------
Binary     1.21       PowerCLI.Vds
Binary     1.21       PowerCLI.ViCore                     HookGetViewAutoCompleter


    Directory: /usr/local/microsoft/powershell/6.0.0-alpha.15/Modules


ModuleType Version    Name                                ExportedCommands
---------- -------    ----                                ----------------
Manifest   1.0.1.0    Microsoft.PowerShell.Archive        {Compress-Archive, Expand-Archive}
Manifest   3.0.0.0    Microsoft.PowerShell.Host           {Start-Transcript, Stop-Transcript}
Manifest   3.1.0.0    Microsoft.PowerShell.Management     {Add-Content, Clear-Content, Clear-ItemProperty, Join-Path...}
Manifest   3.0.0.0    Microsoft.PowerShell.Security       {Get-Credential, Get-ExecutionPolicy, Set-ExecutionPolicy, ConvertFrom...
Manifest   3.1.0.0    Microsoft.PowerShell.Utility        {Format-List, Format-Custom, Format-Table, Format-Wide...}
Script     1.1.2.0    PackageManagement                   {Find-Package, Get-Package, Get-PackageProvider, Get-PackageSource...}
Script     3.3.9      Pester                              {Describe, Context, It, Should...}
Script     1.1.2.0    PowerShellGet                       {Install-Module, Find-Module, Save-Module, Update-Module...}
Script     0.0        PSDesiredStateConfiguration         {StrongConnect, IsHiddenResource, Write-MetaConfigFile, Get-InnerMostE...
Script     1.2        PSReadLine                          {Get-PSReadlineKeyHandler, Set-PSReadlineKeyHandler, Remove-PSReadline...

Notice in the output for the Start-EditorServices.ps1 script it said needs_install. If I pass the -ConfirmInstall flag to the script, I get the following output:

Install-Module : Administrator rights are required to install modules in '/usr/local/microsoft/powershell/6.0.0-alpha.15/Modules'.
Log on to the computer with an account that has Administrator rights, and then try again, or install
'/Users/jondoe/.local/share/powershell/Modules' by adding "-Scope CurrentUser" to your command. You can also try running the
Windows PowerShell session with elevated rights (Run as Administrator).
At /Users/jondoe/.vscode/extensions/ms-vscode.powershell-1.1.0/scripts/Start-EditorServices.ps1:198 char:9
+         Install-Module "PowerShellEditorServices" -RequiredVersion $p ...
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidArgument: (:) [Install-Module], ArgumentException
    + FullyQualifiedErrorId : InstallModuleNeedsCurrentUserScopeParameterForNonAdminUser,Install-Module

Import-Module : The specified module 'PowerShellEditorServices' with version '1.1.0' was not loaded because no valid module file
was found in any module directory.
At /Users/jondoe/.vscode/extensions/ms-vscode.powershell-1.1.0/scripts/Start-EditorServices.ps1:208 char:5
+     Import-Module PowerShellEditorServices -RequiredVersion $parsedVe ...
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ResourceUnavailable: (PowerShellEditorServices:String) [Import-Module], FileNotFoundException
    + FullyQualifiedErrorId : Modules_ModuleWithVersionNotFound,Microsoft.PowerShell.Commands.ImportModuleCommand

If I edit the script and add the -Scope CurrentUser to the Install-Module command, I get the following output:

PackageManagement\Install-Package : No match was found for the specified search criteria and module name
'PowerShellEditorServices'. Try Get-PSRepository to see all available registered module repositories.
At /usr/local/microsoft/powershell/6.0.0-alpha.15/Modules/PowerShellGet/1.1.2.0/PSModule.psm1:1809 char:21
+ ...          $null = PackageManagement\Install-Package @PSBoundParameters
+                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (Microsoft.Power....InstallPackage:InstallPackage) [Install-Package], Exception
    + FullyQualifiedErrorId : NoMatchFoundForCriteria,Microsoft.PowerShell.PackageManagement.Cmdlets.InstallPackage

Import-Module : The specified module 'PowerShellEditorServices' with version '1.1.0' was not loaded because no valid module file
was found in any module directory.
At /Users/jondoe/.vscode/extensions/ms-vscode.powershell-1.1.0/scripts/Start-EditorServices.ps1:208 char:5
+     Import-Module PowerShellEditorServices -RequiredVersion $parsedVe ...
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ResourceUnavailable: (PowerShellEditorServices:String) [Import-Module], FileNotFoundException
    + FullyQualifiedErrorId : Modules_ModuleWithVersionNotFound,Microsoft.PowerShell.Commands.ImportModuleCommand

Output for Get-PSRepository:

> Get-PSRepository

Name                      InstallationPolicy   SourceLocation
----                      ------------------   --------------
PSGallery                 Untrusted            https://www.powershellgallery.com/api/v2/

I'm puzzled as to why PowerShell is not honoring the $env:PSModulePath environment variable you're setting.

In any case, I was able to get the language service to load by making the following changes:

$pathToModule = "$HOME/.vscode/extensions/ms-vscode.PowerShell-1.1.0/modules/PowerShellEditorServices/PowerShellEditorServices.psd1"
if ((Test-ModuleAvailable $pathToModule -RequiredVersion $parsedVersion) -eq $false) {
    if ($ConfirmInstall -and $isPS5orLater) {
        # TODO: Check for error and return failure if necessary
        Install-Module "PowerShellEditorServices" -RequiredVersion $parsedVersion -Confirm -Scope CurrentUser
    }
    else {
        # Indicate to the client that the PowerShellEditorServices module
        # needs to be installed
        Write-Output "needs_install"
    }
}

if ($isPS5orLater) {
    Import-Module $pathToModule -RequiredVersion $parsedVersion -ErrorAction Stop
}
else {
    Import-Module $pathToModule -Version $parsedVersion -ErrorAction Stop
}

Specifically, I'm passing the path to the module into the Test-ModuleAvailable and Import-Module function calls.

One issue I'm still experiencing is that the integrated console does not load on the first attempt; it just hangs indefinitely. I have to Restart Current Session to get it to load.

Hope this helps in correcting the issue permanently.

[daviwil]

Ahh! Sorry guys, I just realized what the problem is. You both need to upgrade to PowerShell 6.0.0-alpha.18 or higher. I'd recommend 6.0.0-beta.1. Once you install that version of PowerShell everything should start working.

[daviwil]

Closing this issue for now since I think a PowerShell Core upgrade fixes the issue. If this is not the case, let me know and I'll reopen for investigation. Thanks!