Could not load file or assembly 'CefSharp.Core.dll' or one of its dependencies. The specified module

[James H]

I'm trying to add an embedded browser as a UserControl into a WPF application, using VS2012. MS Visual C++ 2012 Redistributable 11.0.060610 for x86 and x64 are both installed, also corresponding for 2010,2008 and 2005.

My machine has Win7 64 bit installed.

The application is built using .NET 4.0

The version of CefSharp.dll and CefSharp.Wpf.dll are both 31.0.0.0, 

My problem is that every time I run the constructor for my class cefControlView, it bombs out with the following

System.IO.FileNotFoundException was unhandled

  HResult=-2147024770

  Message=Could not load file or assembly 'CefSharp.Core.dll' or one of its dependencies. The specified module could not be found.

  Source=Mfg.Library.3Dcontrol

  FileName=CefSharp.Core.dll

  FusionLog=""

  StackTrace:

I have a copy of CefSharp.Core.dll (31.0.0.0) in the relevant Bin\Debug folders, also in the root of each project, and also as references. The issue still won't go away. 

I've also added 

icudt.dll

libcef.dll

msvcp110.dll

msvcr110.dll

a number of other dll's, and the "locales" folders as referred to by a few other posts.

I've also updated my path statements to point to the root of each project, and also to the Bin\Debug folders

Now, I didn't have this problem with earlier versions of CefSharp.dll and CefSharp.Wpf.dll (1.25.5.0 I think), it has only started when I changed up to 31.0.0.0 (and the corresponding versions of icudt.dll etc). I moved up to the 31.0.0.0 as the WebGL stuff didn't seem to work in the older versions  

Does anyone have any pearls of wisdom to cast my way?

This is a snippet of my code for the control

namespace Mfg.Library._3Dcontrol

{

    public partial class cefControlView : UserControl

    {

        public WebView web_View;

        public bool webViewIsReady = false;

        public event PropertyChangedEventHandler PropertyChanged;

        public cefControlView()

        {

           InitializeComponent();

           CefSettings settings = new CefSettings();

           Cef.Initialize(settings);

           web_View = new WebView();

           this.PropertyChanged += WebView_PropertyChanged;

           this.uMaster3Dview.Children.Add(web_View);

           web_View.Address = "http://www.google.com";

        }

and the XAML is 

<UserControl 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:chromeView="clr-namespace:CefSharp.Wpf;assembly=CefSharp.Wpf"

             x:Class="Mfg.Library._3Dcontrol.cefControlView"

             x:Name="cefUserControl1"

             mc:Ignorable="d"

             d:DesignWidth="1200"

             d:DesignHeight="1000">

    <Border BorderBrush="#FF0000" BorderThickness="5">

        <Grid x:Name="uMasterWebViewGrid" Width="1200" Height="1000">

            <Grid.ColumnDefinitions>

                <ColumnDefinition Width="*"/>

            </Grid.ColumnDefinitions>

                <Grid Name="uMaster3Dview" />

            

        </Grid>

    </Border>

</UserControl>

[James H]

OK, I've just reverted the CefSharp and CefSharp.Wpf dll's to the version built by the example which is dated 7th Feb, and everything is now working for me.... Including WebGL :)

[Kyle McFarland]

Hi James,

If you get a change can you run Procmon to see exactly what file this failed on. I am betting that you may have missed a dependency (doh), I do it all the time.

But it there is a real issue I'd love to track it down.

-Kyle

[Christophe THEVENIN]

Hi Kyle,

I have the same problem.
I don't use Procmon, because I don't known used Procmon for rhis problem. I use Dependency walker. I don't have error with CefSharp.Core.dll, but when the program run, i have this message: "A procedure imported by 'CefSharp.Core.dll' could not be loaded."

Thanks per advance.

[Atta ur Rahman]

I am facing the same issue stating

Message="A procedure imported by 'CefSharp.Core.dll' could not be loaded." 

any solution to this issue please ? anyone ?

[Alex Maitland]

Start with https://github.com/cefsharp/CefSharp/wiki/Frequently-asked-questions#4-why-do-i-get-an-error-about-could-not-load-file-or-assembly-cefsharpcoredll-or-one-of-its-dependencies-the-specified-module-could-not-be-found-when-trying-to-run-my-cefsharp-based-application-it-compiles-successfully-but-does-not-run

Typically your missing a dependency or don't have the correct VC++ version installed (2012, make sure you pay attention to `x86` and `x64` variants).

http://stackoverflow.com/questions/29843119/exception-loading-cefsharp-core-dll

In the latest version (`39.0.1`) you can use the dependency checker to help you out of it's the case of a missing dependency.

https://github.com/cefsharp/CefSharp/blob/master/CefSharp.Example/CefExample.cs#L82