Behaviours:BorderlessWindowBehavior is build with older Vesion of Blend SDK

[hannespreishuber]

a blank WPF VB Project Visual Studio 2015 RC can not build

[punker76]

@hannespreishuber can you give us more information? have you looked to the references if the correct lib is added?

[hannespreishuber]

C:\WPF\wpfdesigntest\packages\MahApps.Metro.1.1.3-ALPHA068\lib\net45\MahApps.Metro.dll 1.1.3.68

[hannespreishuber]

Schweregrad Code Beschreibung Projekt Datei Zeile
Fehler Der Typ "BorderlessWindowBehavior" aus Assembly "MahApps.Metro" wurde mit einer älteren Version von Blend SDK erstellt und wird in einem Windows Presentation Framework 4-Projekt nicht unterstützt. wpfdesigntest C:\WPF\wpfdesigntest\wpfdesigntest\MainWindow.xaml 14

[punker76]

@hannespreishuber I compiled a private project with VS 2015 RC and got no error. Can you test with the VS 2015 RC too?

[hannespreishuber]

take https://github.com/hannespreishuber/wpfdesigntest

[punker76]

@hannespreishuber with 2015 rc i can compile your test repo with removing this lines, cause this properties are gone... (all tested with the latest stable/alpha version)

ResizeWithGrip and AllowsTransparency are obsolete/deleted properties.

    <i:Interaction.Behaviors>
        <Behaviours:BorderlessWindowBehavior 
            ResizeWithGrip="True"
             AllowsTransparency="False"
            EnableDWMDropShadow="True"  />
    </i:Interaction.Behaviors>

[punker76]

@hannespreishuber any news?

[jumulr]

Hi, using Visual Studio 2015 update 3, .Net 4.6.2 i get those two errors, alternatively and randomely :

• The type BorderlessWindowBehavior from assembly MahApps.Metro was created with a previous version of Blend SDK which is not supported in a Windows Presentation Framework 4 project.
• Can't add an instance of type 'BorderlessWindowBehavior' to a collection of type 'BehaviorCollection'. Only elements of type 'T' are allowed.

It doesn't prevent from executing the app, but the behavior isn't applied.
Same goes for other Mahapps' behaviors.
It breaks starting from .Net 4.5 and System.Windows.Interactivity.dll 4.5.0.0