How do I resolve visual studio unable to find tags

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I have a WPF solution from Team Foundation Server which, when I build it, keeps getting the error "The tag <tag name=""> does not exist in XML namespace 'clr-namespace:<namespacename.views>; assembly=<namespacename>.

The tag IS in the file/namespace. It seems that Visual Studio just can't see it.

Everybody else working with the solution does NOT have this problem!! Just me!!!

I have two questions:

1. Could this be a security problem with TFS? Perhaps when I downloaded the solution, I missed something.

2. How can I get Visual Studio (2013) to tell me where it is looking for the reference, and if it is looking in the wrong place, how can I correct it?

What I have tried:

I've tried every other solution on the Internet listed before this one.

Posted 6-Jun-19 4:37am

Member 12061698

Updated 6-Jun-19 9:17am

v2

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Richard MacCutchan 6-Jun-19 12:27pm

The error message should tell you which file and what line it is looking at.

Member 12061698 6-Jun-19 12:30pm

It does, but the reference actually is in that file. How can VS not find an object that is in the file. (I'm sorry that I neglected to mention this in the question. I'll edit it now.)

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Gerry Schmitz · Answer 1 · 2019-06-06T07:26:00

Solution 1

So you're saying the "error list" says nothing about which "module" is affected? You're just getting some generic message pointing to nowhere? Like "<name>" and "<namespace>" and "" ...

Sounds like a template error. Somewhere.

Posted 6-Jun-19 7:26am

Gerry Schmitz

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Member 12061698 6-Jun-19 13:54pm

The error list does point out the module affected. Here's an example:
The tag 'TreeViewSelectedItemBlendBehavior' does not exist in XML namespace 'clr-namespace:FieldReport.Infrastructure.Behaviors;assembly=FieldReport.Infrastructure'. C:\FieldReport\Field Report\Main\Source\FieldReport\Source\FieldReport.Desktop\Views\ApprovalFoldersView.xaml 24 18 FieldReport.Desktop

The problem is that the tag IS in that namespace. The tag 'TreeViewSelectedItemBlendBehavior' IS in XML namespace 'clr-namespace:FieldReport.Infrastructure.Behaviors. Visual Studio just doesn't seem to be able to see it.

[no name] 6-Jun-19 14:12pm

You should show the XAML. Then insure there are no other errors; because they can cascade nonsense errors. Then you have to see there is an actual reference to that project / dll. THEN use the object browser to confirm the name space. THEN use the name space in code and see what Intelligence does. SOP

Member 12061698 · Answer 2 · 2019-06-06T09:18:00

OK. Here's the XAML:

<UserControl x:Class="FieldReport.Infrastructure.Views.NotificationView"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:viewModels="clr-namespace:FieldReport.Infrastructure.ViewModels"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             mc:Ignorable="d" 
             d:DesignHeight="150" d:DesignWidth="350">
    <UserControl.DataContext>
        <viewModels:NotificationViewModel />
    </UserControl.DataContext>
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
        </Grid.RowDefinitions>
        <WrapPanel Grid.Row="0" HorizontalAlignment="Center" Margin="10">
            <Image Name="IconImage" Source="..\Images\StatusAnnotations_Information_32xLG_color.png" Stretch="None" />
            <TextBox IsReadOnly="True" BorderThickness="0" Name="MessageTextBlock" VerticalAlignment="Center" Text="{Binding Notification.Content}" />
        </WrapPanel>
        <StackPanel Grid.Row="1" Orientation="Horizontal" HorizontalAlignment="Center" Margin="10">
            <Button Name="OKButton" Margin="5" Height="30" Width="100" IsDefault="True" IsCancel="True" Command="{Binding OKCommand}">OK</Button>
        </StackPanel>
    </Grid>
</UserControl>