C#•8mo ago

✅ Could not load file or assembly or one of its dependencies at runtime despite being present

I'm developing a Visual Studio Extension in .net Framework. I'm getting this attached ulcer-inducing error at runtime. I've downloaded the most recent version of Syncfusion.Edit.WPF via NuGet and this also downloads its dependencies (listed here). It's clearly in the Project references (attached) and also in the build directory (attached). The dlls are also the right file version (matching those in nuget). Lastly, I used this in another Extension project with exactly the same libraries/references and it works fine. So I think it's something to do with my Solution/Project or a .net idiosyncrasy. The xaml:

<syncfusion:EditControl Grid.Row="4" Text="Edit Control" Height="100" />

<syncfusion:EditControl Grid.Row="4" Text="Edit Control" Height="100" />

(no intellisense errors) I've tried all the normal: deleting obj/bin folder, cleaning the solution, restarting VS. It persists. Any ideas? Github Repo: https://github.com/stigzler/VisGist

GitHub

GitHub - stigzler/VisGist

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49 Replies

SpReeD•8mo ago

It's working ¯\_(ツ)_/¯

stigzlerOP•8mo ago

you've just built that on your pc?

SpReeD•8mo ago

Yep

stigzlerOP•8mo ago

Yep - it builds, but you get the error at runtime

SpReeD•8mo ago

Ah, I see, it happens when you try to open the window Have you tried adding them into the AssemblyInfo.cs?

stigzlerOP•8mo ago

Well - thanks for taking the time to check, but not sure how that moves me on really yeah - I'm not sure Extensions have that - couldn't see it in the folder I did check the csproj file - all references to the right versions wait

    <PackageReference Include="Syncfusion.Edit.WPF">
      <Version>25.1.42</Version>
    </PackageReference>
    <PackageReference Include="Syncfusion.SfSkinManager.WPF">
      <Version>25.1.42</Version>
    </PackageReference>
    <PackageReference Include="Syncfusion.Themes.MaterialDark.WPF">
      <Version>25.1.42</Version>
    </PackageReference>
    <PackageReference Include="Syncfusion.Themes.MaterialLight.WPF">
      <Version>25.1.42</Version>

    <PackageReference Include="Syncfusion.Edit.WPF">
      <Version>25.1.42</Version>
    </PackageReference>
    <PackageReference Include="Syncfusion.SfSkinManager.WPF">
      <Version>25.1.42</Version>
    </PackageReference>
    <PackageReference Include="Syncfusion.Themes.MaterialDark.WPF">
      <Version>25.1.42</Version>
    </PackageReference>
    <PackageReference Include="Syncfusion.Themes.MaterialLight.WPF">
      <Version>25.1.42</Version>

SHould this also be refencing Syncfusion.GridCommon.WPF etc? Ah no - just checked the other working extension which uses the control and they're not there God this is frustrating

SpReeD•8mo ago

Nah, it's working, you just need to give VS a hint about the packages Not only the top-level, but also the transitive packages as well

stigzlerOP•8mo ago

how do i do that?

SpReeD•8mo ago

I'm on it, sec

stigzlerOP•8mo ago

Ok - thanks

SpReeD•8mo ago

Btw. you have binding errors

stigzlerOP•8mo ago

the "hello world" one?

SpReeD•8mo ago

Not only

SpReeD•8mo ago

Add this to your AssemblyInfo.cs

[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Edit.WPF")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.SfSkinManager.WPF")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Themes.MaterialDark.WPF")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Themes.MaterialLight.WPF")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Shared.Wpf")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Licensing")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.GridCommon.Wpf")]

[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Edit.WPF")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.SfSkinManager.WPF")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Themes.MaterialDark.WPF")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Themes.MaterialLight.WPF")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Shared.Wpf")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Licensing")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.GridCommon.Wpf")]

stigzlerOP•8mo ago

that's weird - is that in the "XAML Binding Failures" window? If so - I only get this:

stigzlerOP•8mo ago

SpReeD•8mo ago

Okay, it opens and it threw an exception about the token cannot be null, but that's it.

stigzlerOP•8mo ago

Thanks - but I haven't got an assemblyinfo.cs - should it go in VisGistPackage.cs?

SpReeD•8mo ago

You do It's autogenerated

stigzlerOP•8mo ago

what am i missing?

SpReeD•8mo ago

Easiest way to bring it up is to search the project for [assembly. CTRL+SHIFT+F, look in Entire Project or Entire solution and search after [assembly.

SpReeD•8mo ago

stigzlerOP•8mo ago

oh bloody hell - sorry - isn't it nomally in the project root?

SpReeD•8mo ago

Depends on the project template, in newer ones it is, but this is the older .net framework template

stigzlerOP•8mo ago

one moment - got same error, but doing bin/obj delete and vs restart

SpReeD•8mo ago

It should look like this:

using System.Reflection;
using System.Runtime.InteropServices;
using VisGist;

[assembly: AssemblyTitle(Vsix.Name)]
[assembly: AssemblyDescription(Vsix.Description)]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany(Vsix.Author)]
[assembly: AssemblyProduct(Vsix.Name)]
[assembly: AssemblyCopyright(Vsix.Author)]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]

[assembly: ComVisible(false)]

[assembly: AssemblyVersion(Vsix.Version)]
[assembly: AssemblyFileVersion(Vsix.Version)]

[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Edit.WPF")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.SfSkinManager.WPF")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Themes.MaterialDark.WPF")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Themes.MaterialLight.WPF")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Shared.Wpf")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Licensing")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.GridCommon.Wpf")]

namespace System.Runtime.CompilerServices
{
    public class IsExternalInit { }
}

using System.Reflection;
using System.Runtime.InteropServices;
using VisGist;

[assembly: AssemblyTitle(Vsix.Name)]
[assembly: AssemblyDescription(Vsix.Description)]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany(Vsix.Author)]
[assembly: AssemblyProduct(Vsix.Name)]
[assembly: AssemblyCopyright(Vsix.Author)]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]

[assembly: ComVisible(false)]

[assembly: AssemblyVersion(Vsix.Version)]
[assembly: AssemblyFileVersion(Vsix.Version)]

[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Edit.WPF")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.SfSkinManager.WPF")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Themes.MaterialDark.WPF")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Themes.MaterialLight.WPF")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Shared.Wpf")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Licensing")]
[assembly: ProvideCodeBase(AssemblyName = "Syncfusion.GridCommon.Wpf")]

namespace System.Runtime.CompilerServices
{
    public class IsExternalInit { }
}

stigzlerOP•8mo ago

Yep + no dice - same error, interstingly in a different place:

stigzlerOP•8mo ago

SpReeD•8mo ago

Add this assembly to the list

stigzlerOP•8mo ago

public class LineItem : FrameworkElement

public class LineItem : FrameworkElement

SpReeD•8mo ago

Just add [assembly: ProvideCodeBase(AssemblyName = "Syncfusion.Tools.Wpf")]

stigzlerOP•8mo ago

oh yeah - didn't spot it missing

SpReeD•8mo ago

Those are transitive packages of the top-level Syncfusion packages I missed that one

stigzlerOP•8mo ago

off by 1 error! 🤣# one mo - more probs

SpReeD•8mo ago

I guess this it how it should look like

stigzlerOP•8mo ago

OK - progress, but now I'm getting an error in my code where it executed successfully before on an library referenced in those additions

stigzlerOP•8mo ago

Does the order in AssemblyInfo.cs matter?

SpReeD•8mo ago

Afaik, no But I don't get any errors at all, it's working, thou it does show white text on white background and the gists content doesn't load, but since it's not a finished product I would say it's fine.

SpReeD•8mo ago

Creation is somehow working

stigzlerOP•8mo ago

Yeah - that implies that the SkinManager isn't working. Maybe the theme assemblies weren't being loaded before, but now they are - it's throwing an error. Weird thing is - I used exactly the same libraries and code in another extension and didn't have to do any of this... Shouldn't nuget auto-update projects with the right libs etc?

SpReeD•8mo ago

What do you mean by auto-update? Getting the latest version automatically? No. Retrieve dependencies and setting them as transitive packages? Yes.

stigzlerOP•8mo ago

Yeah - soz - ambiguous. I meant update AssemblyINfo.cs or any other relvant files. Anyways - not to worry - success - I just removed the theme libraries from assemblyinfo.cs and it now owrks *works

SpReeD•8mo ago

It does it, but VSIX projects are a bit different to regular projects, it's missing something. Also I'm not very familiar with VSIX dev at all - maybe there are newer project templates for VSIX dev as well

stigzlerOP•8mo ago

YEah - would make sense. Anyways a huge thank you! I'd never have found that in a million years and any searches cam nowhere near that Right - back to coding I enjoy... (not crap like that!!)

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✅ Could not load file or assembly or one of its dependencies at runtime despite being present