# Silverlight Problem

**URL:** <https://www.ruby-forum.com/t/silverlight-problem/185218>\
**Category:** IronRuby\
**Created:** [March 16, 2010, 9:15am UTC](https://www.ruby-forum.com/t/silverlight-problem/185218 "2010-03-16T09:15:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![shayfriedman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/bbe5ce/32.png) [@shayfriedman](https://www.ruby-forum.com/u/shayfriedman)\
**Post date:** [March 16, 2010, 9:15am UTC](https://www.ruby-forum.com/t/silverlight-problem/185218/1 "2010-03-16T09:15:33Z")

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Hi there,

I’m trying to create an IronRuby-driven Silverlight project. I’m using  
the  
sl tool and Chiron as the server.  
When trying to view the out-of-the-box template, I get an exception:  
Unhandled Error in Silverlight 2 Application  
Code: 2152  
Category: InitializeError  
Message: Failed to download a platform extension:  
/dlr-slvx/Microsoft.Scripting.slvx

I took the slvx files from the Gestalt project, put them in a dlr-slvx  
folder within my project folder and everything returned to work.

Are these files missing from the official ZIP file, or am I missing  
something?

Thanks!  
Shay.

---

<div class="post-metadata">

**Author:** ![shayfriedman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/bbe5ce/32.png) [@shayfriedman](https://www.ruby-forum.com/u/shayfriedman)\
**Post date:** [March 31, 2010, 9:48am UTC](https://www.ruby-forum.com/t/silverlight-problem/185218/2 "2010-03-31T09:48:40Z")

</div>

Shay,

Not sure what release you’re using, but I’ve made sure that the  
Chiron.exe in the IronRuby releases will only depend on the DLL files,  
and put them in the generated XAP file. Let me know if you had this  
issue with the last RC.

~js

From: removed\_email\_address@domain.invalid  
[[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] On Behalf Of Shay F.  
Sent: Tuesday, March 16, 2010 1:15 AM  
To: ironruby-core  
Subject: [Ironruby-core] Silverlight Problem

Hi there,

I’m trying to create an IronRuby-driven Silverlight project. I’m using  
the sl tool and Chiron as the server.  
When trying to view the out-of-the-box template, I get an exception:  
Unhandled Error in Silverlight 2 Application  
Code: 2152  
Category: InitializeError  
Message: Failed to download a platform extension:  
/dlr-slvx/Microsoft.Scripting.slvx

I took the slvx files from the Gestalt project, put them in a dlr-slvx  
folder within my project folder and everything returned to work.

Are these files missing from the official ZIP file, or am I missing  
something?

Thanks!  
Shay.