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Asked: 2026-05-15T05:30:59+00:00

I make a list in my code like so: List<IConnection> connections = new List<IConnection>();

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I make a list in my code like so:

List<IConnection> connections = new List<IConnection>();

where IConnection is my own interface. This is in a .NET 2.0 executable. If I run the code on my machine (with lots of .Net versions installed) it works fine. If I run it on my test machine (which only has .NET 3.5 SP1 installed) then I get a MethodAccessException in the System.Collections.Generic.List constructor. Any ideas what could be going wrong?

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1 Answer

  1. Editorial Team

    Just to remove some possibilities – re-build your code by replacing:

    List<IConnection> connections = new List<IConnection>();

    with

    List<int> connections = new List<int>();

    In other words, it might be helpful to know if the list can be created with a type other then IConnection.

    I’m not sure where to take it after that, but at least give this a go, to see if you can get your code to run at all.

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