How to resolve Silverlight error "Could not download the Silverlight application. Check web server settings"

If you deploy your Silverlight application to your web server you may receive this error when you try to load the Silverlight page:

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

You can resolve it configuring the web server Mime Types, check if this values are configured:

.xaml application/xaml+xml
.xap application/x-silverlight-app
.xbap application/x-ms-xbap

Hope it helps and Happy Coding!