Invalid XAML

[SnackSBR]

I'm trying to implement jet on my project but i have this error:

A first chance exception of type 'System.Windows.Markup.XamlParseException' occurred in System.Windows.ni.dll

Additional information: Cannot create instance of type 'Cartao_de_Visitas.Classes.JetImageLoaderConverter' [Line: 12 Position: 44]

And my page have this area as invalid XAML

                <DataTemplate>
                    <Grid Margin="12 0 12 0">
                        <Image Height="200" Source="{Binding ImageUrl, Converter={StaticResource JetImageLoaderConverter}}"/>
                    </Grid>
                </DataTemplate>

[artem-zinnatullin]

Did you declare JetImageLoaderConverter in the App.xaml?

You can check README.md and Sample app's App.xaml

[SnackSBR]

xmlns:app="clr-namespace:Cartao_de_Visitas.Classes"

< app:JetImageLoaderConverter x:Key="JetImageLoaderConverter" />

[artem-zinnatullin]

From README.md

<Application
    ...
    xmlns:myApp="clr-namespace:MyApp.NamespaceWithJetImageLoaderConverter>
<Application.Resources>
    <myApp:MyAppJetImageLoaderConverter x:Key="JetImageLoaderConverter"/>
</Application.Resources>
...

What is the name of your extended JetImageLoaderConverter class, are you sure that you declared it in the App.xaml correctly?

[SnackSBR]

http://pastebin.com/hiYB1PXJ http://pastebin.com/bWgJELES http://pastebin.com/bzJRKtQb

[artem-zinnatullin]

Looks valid, hmm... Are you building WP7 or WP8 project?

[SnackSBR]

wp8 project

[artem-zinnatullin]

Very strange.. Can you please clone repository and try to build JetImageLoader Sample project, may be something wrong with your OS config or something same?

[SnackSBR]

sample project runs just fine (already tried). very, very strange.

[artem-zinnatullin]

Yeah :( I don't know what to suggest for you, may be clean and rebuild of the project could help?

I can suggest to try to change some parts of JetImageLoader impementation, config, try to play with some parameters of JetImageLoader config as the error is Cannot create instance

[SnackSBR]

Tried to clean and rebuild too. I think its strange because the only difference from sample for mine is the converter name and with my converter name i get the invalid xaml. I'm missing something on the page apart from http://pastebin.com/pVyfJD4e or this is the only xaml modification needed?

[artem-zinnatullin]

Hmm, no, HorizontalContentAligment is not mandatory of course.

That is super strange I think, because I got two projects with different JetImageLoader names and configurations..

May be you should try to re-add JetImageLoader exactly as in the Sample app? I really don't know how to help you :(

[SnackSBR]

nugget version is the same from jet-image-loader-master/Releases ?

[artem-zinnatullin]

No, NuGet version is not so new as master branch, I can push new version but only tommorow, because I am on the Mac right now, I need Windows PC for that

I would recommend you to try add JetImageLoader as sources and if it works, then NuGet updated version should help you

[SnackSBR]

Tried and I don't get invalid XAML but still have A first chance exception of type 'System.Windows.Markup.XamlParseException' occurred in System.Windows.ni.dll

Additional information: Cannot create instance of type 'Cartao_de_Visitas.Classes.JetImageLoaderConverter' [Line: 12 Position: 44]

I'll keep trying. Thanks

[artem-zinnatullin]

That's very sad :( If I understand how to help you, I'll comment here

[shobankr]

I have the same problem :( tried three different new projects and same error. Sample project works fine. Tried the Nuget package, DLL from sample project and all give the same error.

[shobankr]

Okay I found a fix. instead of adding the name space and resource separately trying the following

< app:JetImageLoaderConverter x:Key="JetImageLoaderConverter" xmlns:app="clr-namespace:Cartao_de_Visitas.Classes"/>

[artem-zinnatullin]

Awesome! Thank you

---

Best regards, Artem Zinnatullin Sent from my bed. On Mar 23, 2014 7:15 PM, "shobankr" notifications@github.com wrote:

Okay I found a fix. instead of adding the name space and resource separately trying the following

< app:JetImageLoaderConverter x:Key="JetImageLoaderConverter" xmlns:app="clr-namespace:Cartao_de_Visitas.Classes"/>

— Reply to this email directly or view it on GitHubhttps://github.com/artem-zinnatullin/jet-image-loader/issues/28#issuecomment-38385222 .

[SnackSBR]

Thanks shobankr, i will try later.

[sgraf812]

For me it helped to make the class public to it can be found by the runtime loader. This required for every value converter.