WPF Application : System.Windows.Interactivity loading error

Asked Apr 04 '18 at 08:40

Active Jun 24 '18 at 11:07

Viewed 846 times

When I am running my application I got this exception.

System.IO.FileLoadException: Could not load file or assembly 'System.Windows.Interactivity, Version=4.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) File name: 'System.Windows.Interactivity, Version=4.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'

So I added DLL from below location.

C:\Program Files (x86)\Microsoft SDKs\Expression\Blend.NETFramework\v4.5\Libraries\System.Windows.Interactivity.dll

After that, if I re-run the application, it is still raising the same exception. Any idea?

edited Apr 04 '18 at 08:55

Cindy Meister

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asked Apr 04 '18 at 08:40

kpgu1718

Is this in the main project of a wpf app? – Andy Apr 04 '18 at 08:57
No, I am adding kind of user control to the main project. – kpgu1718 Apr 04 '18 at 08:59
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That dll will need to end up in the bin/debug next to your exe. Take a look in there. Is it there? If not then add the reference to whatever your main project is. – Andy Apr 04 '18 at 09:03
If I copy v4.5 DLL manually at exe location, while running the exe, it is asking for v4 DLL, and if I copy v4 DLL, it is asking for v4.5 DLL – kpgu1718 Apr 04 '18 at 09:14
You realise that is not what I suggested you do? – Andy Apr 04 '18 at 10:17
Check out [this answer](https://stackoverflow.com/a/215054/2846483). – dymanoid Apr 04 '18 at 10:20

WPF Application : System.Windows.Interactivity loading error

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