PowerShell 7.3 - implementing Retrieving and Exporting Nested Hashtable Structures to CSV
I'm attempting to set up I keep running into I'm attempting to retrieve data from a complex nested hashtable structure and subsequently export this data to a CSV file using PowerShell 7.3. The hashtable contains multiple layers of data, and I want to flatten this structure while preserving the relationships of the nested items. Here's a simplified version of what the hashtable looks like: ```powershell $data = @{ 'Department' = 'Sales'; 'Employees' = @( @{ 'Name' = 'Alice'; 'Role' = 'Manager'; 'Skills' = @('Leadership', 'Negotiation') }, @{ 'Name' = 'Bob'; 'Role' = 'Salesperson'; 'Skills' = @('Communication') } ) } ``` When I try to export this to a CSV, I end up with the following behavior: ``` ConvertTo-Csv : want to convert value "@{Name=Alice; Role=Manager; Skills=System.Object[]}" to type "System.String". behavior: "Object reference not set to an instance of an object." ``` I've tried using `Select-Object` in various combinations to flatten the hashtable, but it seems that the nested arrays within the hashtable are causing issues. Here’s what I’ve tried: ```powershell $flatData = foreach ($employee in $data.Employees) { [PSCustomObject]@{ Department = $data.Department; Name = $employee.Name; Role = $employee.Role; Skills = $employee.Skills -join ', ' } } $flatData | Export-Csv -Path 'output.csv' -NoTypeInformation ``` However, this still gives me errors or leads to incorrect data in the CSV file. The output should list each employee along with their department and skills in a single row but isn't formatted correctly. How can I successfully flatten this nested hashtable and export it to a CSV file correctly? This is my first time working with Powershell LTS. Has anyone dealt with something similar? This issue appeared after updating to Powershell 3.10.