You need to compile the C# project. The client app needs to call these REST APIs to communicate with the database.

Your error looks like you don't have correct version of .NET SDK installed. PowerServer 2021 requires .NET Core 3.1.

Step 1: Verify .NET Core 3.1 SDK is properly installed according to these instructions: https://docs.microsoft.com/en-us/dotnet/core/install/how-to-detect-installed-versions?pivots=os-windows

Step 2: If not properly installed, reinstall the .NET Core 3.1 SDK using this link: https://dotnet.microsoft.com/download/dotnet-core/3.1

Step 3: If this error message in SnapDevelop is still not resolved after doing steps 1 and 2, please submit a support ticket: https://www.appeon.com/standardsupport/newbug

It is a beta. The final release is tentatively planned for May or June 2021.

Oh. Next version so soon. I'm waiting.

Yes I believe the original poster meant to say PowerSERVER not PowerBUILDER.

You need to make sure you have write privileges to this path. Just because it tests successfully in the config screen doesn’t mean you have write privileges. Also, make sure you started the PB IDE using the “Run as Admin” option.

By the way, this path needs to be your local web server, for example c:\inetpub\wwwroot\. What you wrote looks wrong to me.

Same error running as adminstrator

Good point Miguel... forgetting to "Run as administrator" causes so much issues even though the developer does have admin rights on the machine.

Local server (own machine)

Hi,

"H:\appdata\...." does not look like 'local server (own machine). What am I missing?

That looks like the roaming folder, except in PowerServer 2021 the default value is %appdata% environment variable so it maps usually to c:\users\[username]\AppData\Roaming\