Must System.Configuration.ConfigurationManager be manually installed?

[cmeeren]

In a netstandard2.0 project I have this:

new SqlCommandProvider<const(SqlFile<"myfile.sql">.Text), "name=MyConnStr">()

When I run the app (ASP.NET Core targeting net472) and make a DB query, I get an exception saying "Could not load file or assembly 'System.Configuration.ConfigurationManager`.

The problem goes away if I manually install the System.Configuration.ConfigurationManager NuGet package, or if I use a complete connection string instead of name=MyConnStr.

Is manual installation of System.Configuration.ConfigurationManager required, or is this an issue with SqlClient? Perhaps it's related to #349 (comment)?