[IronPython] error 0.7.6 with mono

Jeremy Jones zanesdad at bellsouth.net
Thu Jun 30 16:44:08 CEST 2005

Miguel de Icaza wrote:

>>Hello friends, Ironpython 0.7.x already works with monkey (1.1.8) :D,
>>with the version 0,7,5 everything works well apparently, but with
>>version 0,7,6 it has problems, some idea?
>0.7.6 uses some features from the .NET 2.x framework that have not been
>implemented yet in Mono.
>We are working to complete the 2.x features, these are a good way of
>prioritizing the features that are needed.
>users-ironpython.com mailing list
>users-ironpython.com at lists.ironpython.com
Does anyone know which (recent) versions of mono work with which 
(recent) versions of FePy? 

I'm trying a proof of concept to see how FePy can use assemblies created 
from C# code.  So far, of mono ( and 1.1.7) and FePy (0.6, 0.7.1, 
0.7.5, 0.7.6), only mono (1.1.7 and and FePy 0.6 are doing what 
I'd expect.  I'm at least able to get the FePyConsole in FePy 0.7.1 and 
both of mono 1.1.7 and 1.1.8, but can't load the assembly.  Everything 
else is crapping out.

This is the type of error I'm getting just trying to bring up the 
FePyConsole (this one from mono 1.1.8 and FePy 0.7.5):

jmjones at qiwi 10:34AM mono % mono1.1.8 

** (/usr/local/apps/IronPython-0.7.5/bin/IronPythonConsole.exe:14030): 
WARNING **: The class System.Collections.Generic.IDictionary`2 could not 
be loaded, used in /usr/local/apps/IronPython-0.7.5/bin/IronPython.dll 
(token 0x01000006)

Unhandled Exception: System.NullReferenceException: Object reference not 
set to an instance of an object
in <0x00000> <unknown method>
in <0x0008a> IronPythonConsole.PythonCommandLine:Main (System.String[] 

Jeremy Jones
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