Hi Kevin,
I have not experienced this error recently. However, I did update the AWS instance to a more recent 2019 Microsoft Windows Server. What operating system and .Net Framework version are you running? Are you able to run the model on a local machine but not on your server?
To check what versions of .Net you have installed you can run the following line of code in Windows Powershell ISE:
Get-ChildItem ‘HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP’ -Recurse | Get-ItemProperty -Name version -EA 0 | Where { $_.PSChildName -Match ‘^(?!S)\p{L}’} | Select PSChildName, version
You should then get some output that looks like this:
PSChildName Version
———– ——-
v2.0.50727 2.0.50727.4927
v3.0 3.0.30729.4926
Windows Communication Foundation 3.0.4506.4926
Windows Presentation Foundation 3.0.6920.4902
v3.5 3.5.30729.4926
Client 4.8.03752
Full 4.8.03752
Client 4.0.0.0
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Cheers,
Leonardo