'RegressionCatalog.RegressionTrainers' does not contain a definition for 'Ols'

Running the code example [from this link](https://learn.microsoft.com/en-us/dotnet/api/microsoft.ml.mklcomponentscatalog.ols?view=ml-dotnet#microsoft-ml-mklcomponentscatalog-ols(microsoft-ml-regressioncatalog-regressiontrainers-system-string-system-string-system-string)) gives the following exception:

`'RegressionCatalog.RegressionTrainers' does not contain a definition for 'Ols' and no accessible extension method 'Ols' accepting a first argument of type 'RegressionCatalog.RegressionTrainers' could be found `

Note: I'm using ML.Net 2.0