Your workspace has multiple Visual Studio Solution files

Hi,
In Visual Studio code, I’ve encountered the following pop-up while practicing;
image
What do I do?
thanks in advance.

That seems like you haven’t changed the source code editor to be VS Code in your editor preferences. By default it would generate a Visual Studio (not Code) solution.

Edit > Editor Preferences > Source Code to change it.

Then use Tools > Refresh/Generate VS Code Project and you can delete the .sln file in your project.