I am trying to ban the usage of Newtonsoft.Json package in my codebase, and I am trying to use the BannedApiAnalyzers Nuget package (latest stable version, 3.3.4).

My problem is that while I am able to ban specific classes, I am unable to ban the entire namespace.

Consider the following code for example:

var x = Newtonsoft.Json.JsonConvert.SerializeObject(new object());

When my BannedSymbols.txt file looks like this:
T:Newtonsoft.Json.JsonConvert;Use System.Text.Json instead
,I get a compilation error, as expected.

But when my BannedSymbols.txt file looks like this: N:Newtonsoft.Json;Use System.Text.Json instead, the build passes.

Banning individual classes is less maintainable and more prone to errors – I want the entire namespace banned.

What am I missing? How can I ban the entire Newtonsoft.Json namespace (and its sub-namespaces, like Newtonsoft.Json.Linq)?