The dependency of CefSharp

[qianlongzju]

Hi Guys,
I have successfully compiled the CefSharp.WinForms.Example and run the app. After that, I just copy the CefSharp.WinForms.Example\bin\x86\Debug folder to another machine which has .NET 4.0 installed. But the app could not run successfully again.
The debug information says:

An unhandled exception of type 'System.BadImageFormatException' occurred in CefSharp.WinForms.Example.exe

Additional information: Could not load file or assembly 'CefSharp.Core.dll' or one of its dependencies. >is not a valid Win32 application. (Exception from HRESULT: 0x800700C1)

I have used Dependency Walker to search for missing dll for CefSharp.Core.dll, and added msvcp120d.dll and msvcr120d.dll. When I rerun the app, I still encounter the same problem.

So, I really want to know what the other dependencies are, which can help me package my app.

[jornh]

First obvious problem is that CefSharp.Core.dll delivered through NuGet which CefSharp.WinForms.Example use is built using VS 2012, as mentioned in the FAQ - so the dependencies should be msvc*110*.dll - also make sure your own project is set to x86 not e.g. AnyCPU.

Finally I suggest you use NuGet to install CefSharp into your project. If you start by creating a fresh x86 project NuGet should take care of copying all dependencies to your bin/ folder (apart from VCRedist 2012)

[qianlongzju]

@jornh Yeah, I have used NuGet to install CefSharp. And all the thing is fine.
But I am now focusing on packaging my application, and try to install on other machines, So I want to know the detail dependencies.
And should the dependencies be msvc*110*.dll? Or are msvc*100*.dll ok? I see my target machine have msvc*100*.dll, but not work, so I am trying msvc*110*.dll.
I really don't know much about those dll things. Please let me know if I have any misunderstanding.

[qianlongzju]

@jornh I have added all msvc*100*.dll and msvc*110*.dll and msvc*120*.dll, still can not run the app in my target machine.

[amaitland]

@jessicasco did you follow the instructions as per https://github.com/cefsharp/CefSharp/wiki/Frequently-asked-questions#6-how-do-i-include-the-visual-studio-c-2012-redistributables-on-the-target-app?

[jornh]

You said

An unhandled exception of type 'System.BadImageFormatException' occurred in CefSharp.WinForms.Example.exe

I think Google/ and Stack Owerflow in particular is your friend: http://stackoverflow.com/a/18625875/210723

[qianlongzju]

I installed Visual C++ Redistributable Packages for Visual Studio 2013 (http://www.microsoft.com/en-us/download/confirmation.aspx?id=40784) and it didnot work.
But if I install vs2013 on my target machine, the app can run.

[amaitland]

I installed Visual C++ Redistributable Packages for Visual Studio 2013 (http://www.microsoft.com/en-us/download/confirmation.aspx?id=40784) and it didnot work.

Did you read the FAQ article I linked to above?

[qianlongzju]

yeah,i have copied the dll files under the directory in your link

[amaitland]

I installed Visual C++ Redistributable Packages for Visual Studio 2013 (http://www.microsoft.com/en-us/download/confirmation.aspx?id=40784) and it didnot work.

Is there a reason you installed 2013 rather than 2012?

Latest version of 2012 at time of writing is here http://www.microsoft.com/en-us/download/details.aspx?id=30679

[jornh]

Ah, I think that might point to either:

• That you should normally distribute release versions (VCRedist only is for release)
• Or that you must install the x86 version of VCRedist when you build for x86 --- see details at http://www.microsoft.com/en-us/download/details.aspx?id=40784 there are different packages

Oh, and

(http://www.microsoft.com/en-us/download/confirmation.aspx?id=40784)

certainly won't do it .. it's vcredist_arm.exe! I think we might need to clarify this in the FAQ 😝

Update yes of course @amaitland is right - you also need it to be 2012, not the link I gave!

[peters]

Its no wonder you cannot run cefsharp on a target machine when you compile
in debug mode. This requires the debug version of the redist. Thats why it
works when you install visual studio on the target machine. Copy msvcr120d,
msvcp120d and you are good to go. Please take note that these two files
ends with a 'd'.

On Monday, October 20, 2014, Alex Maitland notifications@github.com wrote:

I installed Visual C++ Redistributable Packages for Visual Studio 2013 (
http://www.microsoft.com/en-us/download/confirmation.aspx?id=40784) and
it didnot work.

Did you read the FAQ article I linked to above?

—
Reply to this email directly or view it on GitHub
#519 (comment).

Regards,
Peter Sunde.

[amaitland]

(VCRedist only is for release)

Should probably add that to the FAQ, might be relevant for those building from source.

Or that you must install the x86 version of VCRedist when you build for x86

I guess we should include some info about x86 and x64 in the FAQ as well.

[jornh]

@peters yes, that would be true if the CefSharp dll's came from a source build with debug from a VS2013.

As @jessicasco uses the release ones (from I hope 33.<something> which is release) it need to be like the FAQ says VCRedist 2012 - with the extra addition that you need x86 - even for a VS2013 application build.... Oh boy, I 🙏 that all this really is right (otherwise please forgive and then correct me ;)

I guess we need to draw a real simple picture with the dependencies and why, because it will haunt us from now on, with x64 now in the mix too this wont get easier 😧

[jornh]

@jessicasco did you get it working?

[qianlongzju]

@jornh yeah, it's working now. I compiled it under Debug mode, so vcredist didn't help. I can run it if compiled under Release mode.

[jornh]

Great! Then please go ahead and close this issue so it's nice and tidy in here 👍

[qianlongzju]

Hi guys, I still found that the app didn't function normally. Is there something needed to do about CefSharp.BrowserSubprocess.exe? One of my app can startup, but show blank page, and the other app crashed when starting up and show that CefSharp.BrowserSubprosses has stoped working

Additional information: The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http://tempuri.org/:CallMethodResult. The InnerException message was 'There was an error deserializing the object of type CefSharp.Internals.BrowserProcessResponse. The maximum string content length quota (8192) has been exceeded while reading XML data. This quota may be increased by changing the MaxStringContentLength property on the XmlDictionaryReaderQuotas object used when creating the XML reader.'. Please see InnerException for more details.

[qianlongzju]

ps. The exception is An unhandled exception of type 'System.ServiceModel.Dispatcher.NetDispatcherFaultException' occurred in mscorlib.dll

[amaitland]

The maximum string content length quota (8192) has been exceeded while reading XML data

Are you executing Javascript at some point in your application?

[qianlongzju]

@amaitland yeah, I am executing Javascript at some point. Also I found that
on my target machine the ·CefSharp.WinForms.Exampe exe· can start up but can not load pages.

[amaitland]

I'd say you have two separate issues.

• The javascript your executing is returning a result larger than 8192, easiest way to fix this is to move onto the JsBinding_Wip branch, or the 33.1.0-pre01 nuget package
• Your machine isn't configured correctly or your build is incomplete. Confirm you copied all the files correctly when you deployed the CefSharp.WinForms.Example

[qianlongzju]

@amaitland
For issue 1, the current branch I am using is JsBinding_Wip.
For issue 2, I have installed .NET 4.0 and vcredist, and copied all the files under bin.

[amaitland]

For issue 1, the current branch I am using is JsBinding_Wip

Do you have a code sample?

[qianlongzju]

@amaitland
I tried that: compile CefSharp.WinForms.Example project, copy and paste CefSharp\CefSharp.WinForms.Example\bin\x64\Release to another location in the same machine, run CefSharp.WinForms.Example.exe and I cannot load pages. Can you check this on your machine?

[jornh]

I don't think https://github.com/cefsharp/CefSharp/blob/v33.1.0-pre01/CefSharp.Example/CefExample.cs#L11 does blend very well with:

compile CefSharp.WinForms.Example project, copy and paste CefSharp\CefSharp.WinForms.Example\bin\x64\Release to another location in the same machine, run CefSharp.WinForms.Example.exe and I cannot load pages.

Note what expectations it sets up for where the BrowserSubprocess should live. Not very obvious 😧

[amaitland]

I don't think https://github.com/cefsharp/CefSharp/blob/v33.1.0-pre01/CefSharp.Example/CefExample.cs#L11 does blend very well with:

Nice spot @jornh I've just committed a small change which hopefully is workable 9380f8f

[qianlongzju]

@jornh @amaitland I got things right now, thank you for your help. Also, I found that if I use functionality of RegisterJsObject, I need to install .Net 4.5.1. If not BrowserSubprocess.exe will crash and report something wrong on kernelbase.dll

[amaitland]

I need to install .Net 4.5.1. If not BrowserSubprocess.exe will crash and report something wrong on kernelbase.dll

@jessicasco As I don't have a machine with .Net 4.0 are you able to provide more detail on the problem? If you've got time, please open a separate issue.