Strange 'missing an assembly reference?' error in wpf user control library

Question

i have below error in my C# wpf user control library :

Severity Code Description Project File Line Error CS0234 The type or namespace name 'StylesTemplates' does not exist in the namespace 'MHToolkit'(are you missing an assembly reference?)'`

i have resource dictionary in the folder, the error will be disappear when i Exclude StylesTemplate Folder from the project

and i am using it in usercontrol this my user control code :

<UserControl x:Class="MHToolkit.UserControl1"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:MHToolkit"
             xmlns:ST="clr-namespace:MHToolkit.StylesTemplates"
             xmlns:VM="clr-namespace:MHToolkit.ViewModels"
             mc:Ignorable="d" 
             d:DesignHeight="300" d:DesignWidth="300">
    <UserControl.Resources>
        <VM:MainViewModel x:Key="MainVM" />
    </UserControl.Resources>
    <UserControl.DataContext>
        <Binding Source="{StaticResource MainVM}" />
    </UserControl.DataContext>


    <Grid>

    </Grid> </UserControl>

i am using vs2014 and .net 4.5 .

i have no idea how to fix this error ?

any help will be appreciated

tanx in advance

image of solution explorer window below

What is inside that xaml? Including it into project is enough to cause compiler to process it. — Sinatr, Aug 10 '16 at 09:02
`CardViewStyle` seems to be a resource. Resources dont have namespaces. — lokusking, Aug 10 '16 at 09:06
@lokusking, *seems* to be.. Another question would be [did you try to restart VS](http://stackoverflow.com/a/22406897/1997232)? — Sinatr, Aug 10 '16 at 09:08
@Sinatr yes i tried it too many times. but error still there — MH480, Aug 10 '16 at 09:13

score 1 · Accepted Answer · answered Aug 10 '16 at 12:52

Add CardViewStyle.xaml as the Resource Dictionary Check the below code

Add this to the current Usercontrol

 <UserControl.Resources>
   <ResourceDictionary>
        <ResourceDictionary.MergedDictionaries>
            <ResourceDictionary Source="/MHToolkit;component/StylesTemplates/CardviewStyle.xaml" />
        </ResourceDictionary.MergedDictionaries>
 </ResourceDictionary>

Otherwise you can add App.xaml file and used all apllication

<Application.Resources>
   <ResourceDictionary>
        <ResourceDictionary.MergedDictionaries>
            <ResourceDictionary Source="/MHToolkit;component/StylesTemplates/CardviewStyle.xaml" />
        </ResourceDictionary.MergedDictionaries>
 </ResourceDictionary>

Strange 'missing an assembly reference?' error in wpf user control library

1 Answers1