Get-PowerBIWorkspace : Attempted to access an element as a type incompatible with the array

Issue Description

I’m receiving the following error when trying to use the Get-PowerBIWorkspace cmdlet in VS Code & Azure Data Studio:

Get-PowerBIWorkspace : Attempted to access an element as a type incompatible with the array. At line:1 char:1

I do not receive this error when running the exact same command in the ISE or PowerShell.exe, and I can reproduce these results on multiple machines.

System Details

• Operating system: Windows 7
• Azure Data Studio version 1.9.0 (system setup) - July 10th build (monthly release).
• PowerShell extension version 2019.5.0
• Output from $PSVersionTable 5.1.14409.1018

Full error message

PS C:\temp> Get-PowerBIWorkspace
Get-PowerBIWorkspace : Attempted to access an element as a type incompatible with the array.
At line:1 char:1
+ Get-PowerBIWorkspace
+ ~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : WriteError: (Microsoft.Power...owerBIWorkspace:GetPowerBIWorkspace) [Get-PowerBIWorkspace], ArrayTypeMismatchException
    + FullyQualifiedErrorId : Attempted to access an element as a type incompatible with the array.,Microsoft.PowerBI.Commands.Workspaces.GetPowerBIWorkspace

[SydneyhSmith]

@SQLvariant agreed that it would be nice for module authors to know which versions of Newtonsoft they should use as this can be a very complicated issue…might be best to open an issue in PowerShell/PowerShell on how to handle C# module dependency management

[rapidpulse]

It appears that the issue is caused by the version of the Newtonsoft.Json DLL being outdated (relative to what the PowerBI modules require).