System.IO.FileLoadException when signing application
<p>I have a WPF application that follows the MVVM pattern. We recently signed the app and now I am getting a lot of first chance exceptions on startup. I have traced the problem to the following:</p>

<p>In any view, if I reference another namespace with in the application when the view is initialized I get the error: </p>

<pre><code>"Could not load file or assembly 'MyApplication, Version=3.0.5917.24348, Culture=neutral, PublicKeyToken=xxxxxxxxxxxx' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)":"MyApplication, Version=3.0.5917.24348, Culture=neutral, PublicKeyToken=xxxxxxxxxxx"
</code></pre>

<p>Its always looking for a version that is 1 behind the version that I'm actually running.</p>

<p>If I remove the references to the other namespaces from the views, the <code>InitializeComponent()</code> does not throw the error</p>

<p>View:</p>

<pre><code>&lt;UserControl x:Class="MyApplication.View.DiagnosticsView"
             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:convert="clr-namespace:MyApplication.Converters"  &lt;!--Causes error--&gt;
             xmlns:behave="clr-namespace:MyApplication.Behaviors" &lt;!--Causes error--&gt;
             xmlns:controls="clr-namespace:MyApplication.UserControls"  &lt;!--Causes error--&gt;
</code></pre>

<p>If I remove these references, and move my converters and behaviors into another DLL and then reference them through the DLL there is no problem. The errors go away. Also If I don't sign the application I do not get the errors. I don't really want to have to reference these things in a different DLL, it seems like this should work fine. It also spends about 30 seconds throwing all of these errors as all of the views are created, so I am taking a hit on performance. I dont get why the application is trying to load itself, and why its trying to load an older version of itself. No matter how many times I build, the error is always 1 version behind.</p>

<p>Fusion Log:</p>

<pre><code>*** Assembly Binder Log Entry  (3/17/2016 @ 10:30:11 AM) ***

The operation failed.
Bind result: hr = 0x80131040. No description available.

Assembly manager loaded from:  C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
Running under executable  C:\tfs\Development\dev-feature\src\MyApplication\bin\Debug\MyApplication.exe
--- A detailed error log follows. 

=== Pre-bind state information ===
LOG: DisplayName = MyApplication, Version=3.0.5920.15594, Culture=neutral, PublicKeyToken=xxxxxxxxxxxx
 (Fully-specified)
LOG: Appbase = file:///C:/tfs/Development/dev-feature/src/MyApplication/bin/Debug/
LOG: Initial PrivatePath = NULL
LOG: Dynamic Base = NULL
LOG: Cache Base = NULL
LOG: AppName = MyApplication.exe
Calling assembly : PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35.
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\tfs\Development\dev-feature\src\MyApplication\bin\Debug\MyApplication.exe.Config
LOG: Using host configuration file: 
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
LOG: Post-policy reference: MyApplication, Version=3.0.5920.15594, Culture=neutral, PublicKeyToken=7b0591cb18d2a932
LOG: GAC Lookup was unsuccessful.
LOG: Attempting download of new URL file:///C:/tfs/Development/dev-feature/src/MyApplication/bin/Debug/MyApplication.DLL.
LOG: Attempting download of new URL file:///C:/tfs/Development/dev-feature/src/MyApplication/bin/Debug/MyApplication/MyApplication.DLL.
LOG: Attempting download of new URL file:///C:/tfs/Development/dev-feature/src/MyApplication/bin/Debug/bin/MyApplication.DLL.
LOG: Attempting download of new URL file:///C:/tfs/Development/dev-feature/src/MyApplication/bin/Debug/bin/MyApplication/MyApplication.DLL.
LOG: Attempting download of new URL file:///C:/tfs/Development/dev-feature/src/MyApplication/bin/Debug/MyApplication.EXE.
LOG: Assembly download was successful. Attempting setup of file: C:\tfs\Development\dev-feature\src\MyApplication\bin\Debug\MyApplication.exe
LOG: Entering run-from-source setup phase.
LOG: Assembly Name is: MyApplication, Version=3.0.5920.15596, Culture=neutral, PublicKeyToken=7b0591cb18d2a932
WRN: Comparing the assembly name resulted in the mismatch: Revision Number
ERR: The assembly reference did not match the assembly definition found.
ERR: Run-from-source setup phase failed with hr = 0x80131040.
ERR: Failed to complete setup of assembly (hr = 0x80131040). Probing terminated.
</code></pre>