[eric@farm228 ClassLibrary2]$ nunit-console bin/Debug/ClassLibrary2.dll
NUnit version 2.4.8
Copyright (C) 2002-2007 Charlie Poole.
Copyright (C) 2002-2004 James W. Newkirk, Michael C. Two, Alexei A. Vorontsov.
Copyright (C) 2000-2002 Philip Craig.
All Rights Reserved.

Runtime Environment -
   OS Version: Unix 2.6.9.89
  CLR Version: 2.0.50727.1433 ( 2.10.2 (tarball Thu Sep 29 08:29:23 EDT 2011) )

Missing method .ctor in assembly /tmp/nunit20/ShadowCopyCache/31433_634678656032933650/Tests/assembly/shadow/8eea66c5/97b2ea0d_19588cc8_00000001/ClassLibrary2.dll, type System.Runtime.Versioning.TargetFrameworkAttribute
Can't find custom attr constructor image: /tmp/nunit20/ShadowCopyCache/31433_634678656032933650/Tests/assembly/shadow/8eea66c5/97b2ea0d_19588cc8_00000001/ClassLibrary2.dll mtoken: 0x0a000001
Unhandled Exception:
System.TypeLoadException: Could not load type 'System.Runtime.Versioning.TargetFrameworkAttribute' from assembly 'ClassLibrary2'.

Server stack trace:
  at (wrapper managed-to-native) System.MonoCustomAttrs:GetCustomAttributesInternal (System.Reflection.ICustomAttributeProvider,System.Type,bool)
  at System.MonoCustomAttrs.GetCustomAttributesBase (ICustomAttributeProvider obj, System.Type attributeType) [0x00019] in /home/cds/eric/mono/mono-2.10.2/mcs/class/corlib/System/MonoCustomAttrs.cs:95
  at System.MonoCustomAttrs.GetCustomAttributes (ICustomAttributeProvider obj, Boolean inherit) [0x00017] in /home/cds/eric/mono/mono-2.10.2/mcs/class/corlib/System/MonoCustomAttrs.cs:263
  at System.Reflection.Assembly.GetCustomAttributes (Boolean inherit) [0x00000] in /home/cds/eric/mono/mono-2.10.2/mcs/class/corlib/System.Reflection/Assembly.cs:220
  at NUnit.Core.Reflect.GetAttributes (System.Reflection.Assembly assembly, Boolean inherit) [0x00000] in /home/cds/eric/mono/mono-2.10.2/mcs/nunit24/NUnitCore/core/Reflect.cs:123
  at NUnit.Core.NUnitFramework.ApplyCommonAttributes (System.Reflection.Assembly assembly, NUnit.Core.Test test) [0x00000] in /home/cds/eric/mono/mono-2.10.2/mcs/nunit24/NUnitCore/core/NUnitFramework.cs:224
  at NUnit.Core.Builders.TestAssemblyBuilder.BuildTestAssembly (System.String assemblyName, IList fixtures, Boolean autoSuites) [0x000a6] in /home/cds/eric/mono/mono-2.10.2/mcs/nunit24/NUnitCore/core/Builders/TestAssemblyBuilder.cs:145
  at NUnit.Core.Builders.TestAssemblyBuilder.Build (System.String assemblyName, Boolean autoSuites) [0x00028] in /home/cds/eric/mono/mono-2.10.2/mcs/nunit24/NUnitCore/core/Builders/TestAssemblyBuilder.cs:100
  at NUnit.Core.Builders.TestAssemblyBuilder.Build (System.String assemblyName, System.String testName, Boolean autoSuites) [0x00016] in /home/cds/eric/mono/mono-2.10.2/mcs/nunit24/NUnitCore/core/Builders/TestAssemblyBuilder.cs:76
  at NUnit.Core.TestSuiteBuilder.BuildSingleAssembly (NUnit.Core.TestPackage package) [0x0001e] in /home/cds/eric/mono/mono-2.10.2/mcs/nunit24/NUnitCore/core/TestSuiteBuilder.cs:119
  at NUnit.Core.TestSuiteBuilder.Build (NUnit.Core.TestPackage package) [0x00025] in /home/cds/eric/mono/mono-2.10.2/mcs/nunit24/NUnitCore/core/TestSuiteBuilder.cs:65
  at NUnit.Core.SimpleTestRunner.Load (NUnit.Core.TestPackage package) [0x0000b] in /home/cds/eric/mono/mono-2.10.2/mcs/nunit24/NUnitCore/core/SimpleTestRunner.cs:107
  at NUnit.Core.ProxyTestRunner.Load (NUnit.Core.TestPackage package) [0x00000] in /home/cds/eric/mono/mono-2.10.2/mcs/nunit24/NUnitCore/core/ProxyTestRunner.cs:104
  at NUnit.Core.ProxyTestRunner.Load (NUnit.Core.TestPackage package) [0x00000] in /home/cds/eric/mono/mono-2.10.2/mcs/nunit24/NUnitCore/core/ProxyTestRunner.cs:104
  at NUnit.Core.RemoteTestRunner.Load (NUnit.Core.TestPackage package) [0x0005b] in /home/cds/eric/mono/mono-2.10.2/mcs/nunit24/NUnitCore/core/RemoteTestRunner.cs:45
  at (wrapper xdomain-dispatch) NUnit.Core.RemoteTestRunner:Load (object,byte[]&,byte[]&)

Exception rethrown at [0]: