Can you help me detect missing directive (extension method not found) - system.reactive

Question

I am starting to play with rx extension for .NET and downloaded some sources.
Basic examples works fine, however there is a function causing an error apparently because an extension method is not declared (should be imported with some directive)
The line of code causing the error is the 2nd one (list.Run) in the commented source (I commented to be able to compile):
/*
protected static void WriteListToConsole<T>(IEnumerable<T> list, string name) {
list.Run(
value => Console.WriteLine("{0} : {1}", name, value),
() => Console.WriteLine("{0} Completed", name));
}
*/
it looks like Rx defines somewhere an ext. method Run to IEnumerable but I am not importing it.
I installed Rx v2.0.3 SDK.msi , added references in my project to all System.Reactive.* I found and used:
using System;
using System.Reactive.Subjects;
using System.Reactive.Linq;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
I also tried use the Nuget rx.main and ix.main packages in my project but the error is always there.
Searching on google IEnumerable + Run gives me no info.
Any help appreciated.
Thanks

Answer 1

Hi I think that is a very old sample you are looking at.
This is now replaced with the extension method ForEach which can be found in the System.Linq namespace in the System.Interactive dll (IX-Main nuget I think).
You will also note that the OnCompleted function parameter is gone, cause well it was a silly idea. The new code should look like:
protected static void WriteListToConsole<T>(IEnumerable<T> list, string name)
{
list.ForEach(value => Console.WriteLine("{0} : {1}", name, value));
Console.WriteLine("{0} Completed", name);
}