Silverlight hangs at 100% loaded

I had this problem in browser, out of browser - even when debugging. Using Silverlight 4 beta.

I hit F5 to start debugging and it never even hit a breakpoint for the constructor of App.xaml.cs.

I knew I'd uninstalled an out of browser app and changed some out of browser settings recently but nothing would tell me the actual problem.

I found in the end if I ran in IE (normally I use Chrome) - then an error icon would be shown in the bottom left - as if it were a javascript error.

Webpage error details

Message: Unhandled Error in Silverlight Application 
Code: 2020    
Category: ParserError       
Message: Invalid Property: OutOfBrowserSettings.     
File:      
Line: 47     
Position: 27     

Line: 54
Char: 13
Code: 0
URI: file:///R:/Project/Projece/Bin/Debug/TestPage.html

Well this didn't get me any further - except to tell me something was messed up with OutOfBrowserSettings.

What I ended up doing was creating a new AppManifest.xml. As of Silverlight 4 this is the default AppManifest.xml.

<Deployment xmlns="http://schemas.microsoft.com/client/2007/deployment"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
>
    <Deployment.Parts>
    </Deployment.Parts>
</Deployment>

I disabled 'create app manifest' and reenabled it. After toggling some of the settings back and forth - and even creating AppManifest2.xml I managed to get it working again.

I switched back to my original AppManifest.xml and it worked.

The point being check any message the browser gives you - and then change things that you don't think will make a difference.

Good luck!


My other answer looks quite convoluted compared to this. This may or may not help in this situation but its worth a try:

In Visual Studio :

  • Click Debug > Exceptions
  • Click 'Find' and search for XAML
  • Click the 'Thrown' button next to System.Windows.Markup.XamlParseException

Start your project in debug mode. Any Xaml exceptions will be shown immediately. Check the inner exception sometimes for further information.

I wasted soooo much time before I finally figured this one out!


I figured out the problem after looking at the XAML. On the height property of one of my buttons, there was a line break right before the ending quote. Expression blend didn't mark it as an error, and everything showed up fine in design mode.

When I removed the line break, the loading problem was fixed.

Tags:

Silverlight

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