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Add-PowerAppsAccount - System.Security.Cryptography.SHA256Cng

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Posted on by robcaretta

I could really use some assistance with this module. I have the latest versions of Powershell 7.1.3, VS Code 1.57.1 , VS Code powershell extension 2021.6.2, and the latest version of Microsoft.PowerApps.Administration.PowerShell.

I can not for the life of my figure out how to authenticate with this module using this combination of technology.

When I run Add-PowerAppsAccount I receive the error message Add-PowerAppsAccount: Exception calling "AcquireToken" with "4" argument(s): "Could not load type 'System.Security.Cryptography.SHA256Cng' from assembly 'System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=xxxxxxxxxxxxx'."

Could you advise on what I am missing, or doing wrong?

Thanks,
Rob

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Governance & administering

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ChrisPiasecki 6,426 Most Valuable Professional on at

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Hi @robcaretta,

You'll need to use Windows PowerShell with the PowerApps modules, the System.Net.Cryptography DLL that it depends on is built on .NET Framework, whereas PowerShell 7 is built on .Net Core. More information below:

https://docs.microsoft.com/en-us/power-platform/admin/powerapps-powershell#requirements

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robcaretta 75 on at

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Thanks for the prompt response. I understand now, I can switch VS Code back to 5.1. Was hoping to start using more modern PS tooling but apparently can't. Frustrating.

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