Newtonsoft not found by batch file only

Question

My environment is Visual Studio 2019 Community Edition on Windows 10. I have a solution named MyWebApi inside MyWebApi folder which uses Newtonsoft. When I open the solution in Visual Studio and build the solution, it build successfully. Now I am trying to build the solution outside of Visual Studio via a batch file. So I create a batch file with this line:

dotnet build MyWebApi\MyWebApi.sln --configuration Debug

Then open PowerShell and run the batch file. But I get an error message:

error CS0246: The type or namespace name 'Newtonsoft' could not be found (are you missing a using directive or an assembly reference?)

So on the same computer, Visual Studio can find the 'Newtonsoft' but the batch file cannot? How can I solve this issue?

The batch file only has 1 line:

dotnet build MyWebApi\MyWebApi.sln --configuration Debug

Not sure why someone voted that this question need more clarity? The batch file contains just 1 line and I am running it from PowerShell. I have also tried running it from PowerShell as an Administrator but still the same error message.