VS2010 Code: 2104 Could not download the Silverlight application

Posted by rotary_engine on Stack Overflow See other posts from Stack Overflow or by rotary_engine
Published on 2010-04-03T15:59:22Z Indexed on 2010/04/03 16:03 UTC
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visual-studio-2010

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silverlight-4.0

I've just started getting this Javascript error running VS2010 with SL4

Error: Unhandled Error in Silverlight Application 
Code: 2104    
Category: InitializeError       
Message: Could not download the Silverlight application. Check web server settings

Everything was working fine, changed 1 line of code to use a RegularExpression in the web project (using the Silverlight Business Application template) then when rebuilding I get this error.

Google says this is IIS and mimetype related. I'm using Cassini not IIS with VS2010.

Rebooted, cleared xap from IE cache. Error on both IE and FF.

What could be wrong?

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