Get-TfsTeamProject : Method not found: 'Newtonsoft.Json.JsonSerializerSettings

[MSIH]

When I run this command I get this error. Windows 2016 server.

PS C:\Users\Administrator> Get-TfsTeamProject
Get-TfsTeamProject : Method not found: 'Newtonsoft.Json.JsonSerializerSettings System.Net.Http.Formatting.BaseJsonMediaTypeFormatter.get_SerializerSettings()'.
At line:1 char:1

• Get-TfsTeamProject

•   + CategoryInfo          : NotSpecified: (:) [Get-TfsTeamProject], MissingMethodException
    + FullyQualifiedErrorId : MissingMethodException,TfsCmdlets.Cmdlets.TeamProject.GetTeamProject
  

[PhmAnthony]

Same issue.

PS A:> $PSVersionTable

Name Value

---

PSVersion 5.1.17763.3770
PSEdition Desktop
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
BuildVersion 10.0.17763.3770
CLRVersion 4.0.30319.42000
WSManStackVersion 3.0
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1

PS A:> Get-Module TfsCmdlets

ModuleType Version Name

---

Binary 2.6.0 TfsCmdlets

[igoravl]

Windows Server 2019 version 1809 is a rather old build. I'm assuming neither of you can either update Windows PowerShell (by installing the latest Windows Management Framework) or install PowerShell 7 in those servers, right? That would be the easiest/fastest workaround.

Anyways, I'm trying to repo this bug in a VM and I'll see if I can come up with a fix or a workaround. I'll let you know how it goes.

[igoravl]

@MSIH @PhmAnthony any chance could you share the loaded modules in your PowerShell session, and also the copies of Newtonsoft.Json loaded in the PS AppDomain?

Get-Module

[System.AppDomain]::CurrentDomain.GetAssemblies() | where Location -like *newton* | select FullName, Location

This error usually stems from a module being loaded before TfsCmdlets which happens to have an older version of Newtonsoft.Json. Unfortunately, proper module isolation is something very tricky to be done in Windows PowerShell 5.x (.NET Core / PS7 improves things in that regard).

Besides sharing your loaded modules, could you please run a PS session without loading your profile (powershell -noprofile), then load TfsCmdlets and try to run your commands again? I'm trying to find out whether a module loaded earlier might be breaking TfsCmdlets.

[PhmAnthony]

Windows Server 2019 version 1809 is a rather old build. I'm assuming neither of you can either update Windows PowerShell right?

Correct. Unfortunately, I am locked into this OS for the time being.

[PhmAnthony]

If I use PowerShell ISE, PowerShell Tools for Visual Studio, or Developer PowerShell for Visual Studio 2019 then I get no error.
If I use Visual Studio Code, then I get the error.

Visual Studio Code

ModuleType Version    Name                                ExportedCommands
---------- -------    ----                                ----------------
Manifest   3.1.0.0    Microsoft.PowerShell.Management     {Add-Computer, Add-Content, Checkpoint-Computer, Clear-Content...}
Manifest   3.0.0.0    Microsoft.PowerShell.Security       {ConvertFrom-SecureString, ConvertTo-SecureString, Get-Acl, Get-AuthenticodeSignature...}
Manifest   3.1.0.0    Microsoft.PowerShell.Utility        {Add-Member, Add-Type, Clear-Variable, Compare-Object...}
Script     1.1.30     Plaza                               {Add-MachinePath, Assert-FolderExists, Assert-TargetFolderExists, Backup-SingleFileFromPhmEnvironment...}
Script     0.2.0      PowerShellEditorServices.Commands   {Clear-Host, ConvertFrom-ScriptExtent, ConvertTo-ScriptExtent, Find-Ast...}
Binary     0.2.0      PowerShellEditorServices.VSCode     {Close-VSCodeHtmlContentView, New-VSCodeHtmlContentView, Set-VSCodeHtmlContentView, Show-VSCodeHtmlContentView...}
Script     2.2.6      PSReadLine                          {Get-PSReadLineKeyHandler, Get-PSReadLineOption, Remove-PSReadLineKeyHandler, Set-PSReadLineKeyHandler...}
Binary     2.6.0      TfsCmdlets                          {Add-TfsGroupMember, Add-TfsTeamAdmin, Add-TfsTeamMember, Add-TfsWorkItemLink...}

FullName : Newtonsoft.Json, Version=11.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed
Location : C:\Users\PHMIT.AMISSICO\.vscode\extensions\ms-vscode.powershell-2023.2.1\modules\PowerShellEditorServices\bin\Common\Newtonsoft.Json.dll


FullName : Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed
Location : C:\Users\PHMIT.AMISSICO\.vscode\extensions\ms-vscode.powershell-2023.2.1\modules\PSScriptAnalyzer\1.21.0\Newtonsoft.Json.dll


FullName : Newtonsoft.Json, Version=12.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed
Location : C:\Program Files\WindowsPowerShell\Modules\TfsCmdlets\2.6.0\Lib\Desktop\Newtonsoft.Json.dll

PowerShell ISE

ModuleType Version    Name                                ExportedCommands                                                                                                                                                                                                                         
---------- -------    ----                                ----------------                                                                                                                                                                                                                         
Script     1.0.0.0    ISE                                 {Get-IseSnippet, Import-IseSnippet, New-IseSnippet}                                                                                                                                                                                      
Manifest   3.1.0.0    Microsoft.PowerShell.Management     {Add-Computer, Add-Content, Checkpoint-Computer, Clear-Content...}                                                                                                                                                                       
Manifest   3.0.0.0    Microsoft.PowerShell.Security       {ConvertFrom-SecureString, ConvertTo-SecureString, Get-Acl, Get-AuthenticodeSignature...}                                                                                                                                                
Manifest   3.1.0.0    Microsoft.PowerShell.Utility        {Add-Member, Add-Type, Clear-Variable, Compare-Object...}                                                                                                                                                                                
Manifest   3.0.0.0    Microsoft.WSMan.Management          {Connect-WSMan, Disable-WSManCredSSP, Disconnect-WSMan, Enable-WSManCredSSP...}                                                                                                                                                          
Binary     2.6.0      TfsCmdlets                          {Add-TfsGroupMember, Add-TfsTeamAdmin, Add-TfsTeamMember, Add-TfsWorkItemLink...}                                                                                                                                                        

FullName : Newtonsoft.Json, Version=12.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed
Location : C:\Program Files\WindowsPowerShell\Modules\TfsCmdlets\2.6.0\Lib\Desktop\Newtonsoft.Json.dll

PowerShell Tools for Visual Studio

ModuleType Version    Name                                ExportedCommands                                                                                                                                                                                                                                  
---------- -------    ----                                ----------------                                                                                                                                                                                                                                  
Manifest   3.1.0.0    Microsoft.PowerShell.Management     {Add-Computer, Add-Content, Checkpoint-Computer, Clear-Content...}                                                                                                                                                                                
Manifest   3.0.0.0    Microsoft.PowerShell.Security       {ConvertFrom-SecureString, ConvertTo-SecureString, Get-Acl, Get-AuthenticodeSignature...}                                                                                                                                                         
Manifest   3.1.0.0    Microsoft.PowerShell.Utility        {Add-Member, Add-Type, Clear-Variable, Compare-Object...}                                                                                                                                                                                         
Binary     1.0.0.0    PowerShellProTools.VSCode           {Get-CompletionItem, Get-PoshToolsVariable, Out-PoshToolsVariable, Measure-Block...}   

Developer PowerShell for Visual Studio 2019

ModuleType Version    Name                                ExportedCommands
---------- -------    ----                                ----------------
Manifest   3.1.0.0    Microsoft.PowerShell.Management     {Add-Computer, Add-Content, Checkpoint-Computer, Clear-Content...}
Manifest   3.1.0.0    Microsoft.PowerShell.Utility        {Add-Member, Add-Type, Clear-Variable, Compare-Object...}
Binary     16.0.0.0   Microsoft.VisualStudio.DevShell     {Enter-VsDevShell, Send-VsDevShellTelemetry}
Script     1.4.7      PackageManagement                   {Find-Package, Find-PackageProvider, Get-Package, Get-PackageProvider...}
Script     1.0.0.1    PowerShellGet                       {Find-Command, Find-DscResource, Find-Module, Find-RoleCapability...}
Binary     2.6.0      TfsCmdlets                          {Add-TfsGroupMember, Add-TfsTeamAdmin, Add-TfsTeamMember, Add-TfsWorkItemLink...}

FullName                                                                            Location
--------                                                                            --------
Newtonsoft.Json, Version=9.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed  C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\Common7\IDE\PrivateAssemblies...
Newtonsoft.Json, Version=12.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed C:\Program Files (x86)\WindowsPowerShell\Modules\TfsCmdlets\2.6.0\Lib\Desktop\Newtonsoft.Jso...