[IronPython] problems to migrate from Ipy 1.1 to 2.6rc1

Ernesto Cullen ecullen at fibertel.com.ar
Thu Oct 15 04:09:25 CEST 2009

hi all,
   I am trying to update an app which uses IronPython 1.1 to latest Ipy 
2.6rc1. I need the assemblies signed, so I have to build the sources. I 
had following problems:
- The projects are saved with ToolsVersion="4.0", and VS2008sp1 refuses 
to open them. I had to change manually all project files to 
- I use Ipy from a signed assembly so I need Ipy to be signed too. I had 
to change manually the references to 'MSSharedLibdelaySigned.snk' in Src 
directory, is that key ok? I do not set the option 'delay sign'.
- after setting all projects to 'signed', I was able to compile 
IronPython. But then I can not load these assemblies, i get a Strong 
Name validation exception:

Could not load file or assembly 'IronPython, Version=2.6.10920.0, 
Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its 
dependencies. Strong name validation failed. (Exception from HRESULT: 

I don't know where to look to. I have .net 2.0 and 3.5sp1 installed, 
though clrver (SDK v6.0A) gives me only v1.1.4322 and v2.0.50727. 
gacutil does not show Ipy installed.

any clues?

Ernesto Cullen

Tell me and I forget. Teach me and I remember. Involve me and I learn.
Benjamin Franklin

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