diff --git a/mocha-dotnet/src/lib/Mocha.Core/Oms.cs b/mocha-dotnet/src/lib/Mocha.Core/Oms.cs
index 5808136..c82137f 100644
--- a/mocha-dotnet/src/lib/Mocha.Core/Oms.cs
+++ b/mocha-dotnet/src/lib/Mocha.Core/Oms.cs
@@ -1080,6 +1080,10 @@ public abstract class Oms
 
 		// get a list of all library loaders we have implemented
 		LibraryPlugin[] plugins = Plugin.Get<LibraryPlugin>();
+		if (plugins.Length == 0)
+		{
+			throw new InvalidOperationException("No plugins available in '" + System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location) + "'");
+		}
 		foreach (LibraryPlugin plugin in plugins)
 		{
 			Console.WriteLine("found plugin: {0}", plugin.GetType().FullName);
diff --git a/mocha-dotnet/src/plugins/Mocha.Plugins.Libraries.McxMini/McxMiniPlugin.cs b/mocha-dotnet/src/plugins/Mocha.Plugins.Libraries.McxMini/McxMiniPlugin.cs
index a353cdd..ea9a477 100644
--- a/mocha-dotnet/src/plugins/Mocha.Plugins.Libraries.McxMini/McxMiniPlugin.cs
+++ b/mocha-dotnet/src/plugins/Mocha.Plugins.Libraries.McxMini/McxMiniPlugin.cs
@@ -36,8 +36,6 @@ public class McxMiniLibraryPlugin : LibraryPlugin
 
     protected override void LoadInternal(Stream stream, Library library)
     {
-        base.LoadInternal(stream, library);
-
 		BinaryReader r = new BinaryReader(stream);
 
 		string signature = r.ReadFixedString(4);