Could not load or assembly or one of its dependencies

Question

I am using Aforge.net frame work for doing image processing work. I have add 'AForge.Video.FFMPEG.dll' as a referance to my project. I am using VS2012 and 32 bit build target. When Buiding i get

 System.IO.FileNotFoundException was unhandled
  HResult=-2147024770
  Message=Could not load file or assembly 'AForge.Video.FFMPEG.dll' or one of its dependencies. The specified module could not be found.
  Source=VideoReadere
  FileName=AForge.Video.FFMPEG.dll
  FusionLog=""
  StackTrace:
       at VideoReadere.Form1..ctor()
       at VideoReadere.Program.Main() in c:\Users\Prabad\Documents\Visual Studio 2012\Projects\VideoReadere\VideoReadere\Program.cs:line 19
       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException:

my code for that is occur exception

 using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace VideoReadere
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
//here below line give exception
            Application.Run(new Form1());
        }
    }
}

Does the `AForge.Video.FFMPEG.dll` exist in executable path? — Sriram Sakthivel, Aug 27 '14 at 15:24
Do you see a yellow triangle next to `AForge.Video.FFMPEG.dll` under `References` folder in VS? — Arian Motamedi, Aug 27 '14 at 15:25
If you have added the reference correctly then I would pay attention to this part of the error message "or one of its dependencies". Have you also referenced all of the DLLs that AForge.Video.FFMPEG.dll depends on. — Ben Robinson, Aug 27 '14 at 15:27
Use Dependancy Walker from to find your dependancies. You could download from http://www.dependencywalker.com/ — Raghu, Aug 27 '14 at 15:58
copy the "C:\Program Files (x86)\AForge.NET\Framework\Externals\ffmpeg\bin\" dll files into your Aforge.FFMPEG dll path. and then solve the mixedmode errors. — SaddamBinSyed, Oct 24 '17 at 07:31

score 11 · Answer 1 · answered Sep 10 '14 at 06:08

11

You need to copy DLLs from "Externals\ffmpeg\bin" to your AForge.Video.FFMPEG.dll location and maybe you need to install Microsoft Visual C++ Redistributable.

answered Sep 10 '14 at 06:08

skm

143
6

2

Also need to replace the following tag in app.config – Keshan Fernando Nov 10 '15 at 01:28
Phrase "The specified module could not be found." means (in your case) exactly that you need C++ redistributable package to be installed. – Igor S Nov 16 '17 at 20:11

score 3 · Answer 2 · answered Feb 03 '16 at 16:31

I know its a bit late but i hope my answer helps someone. I had this problem and it gave me a bit of a hard time. Here's how it worked for me:

Project -> Add Existing Item (Browse to the DLLs from "Externals\ffmpeg\bin" as mentioned in other answers)
Make sure you show all types from the file type dropdown list
Select all the DLLs and from the add button choose add link option
The DLLs should be shown on you project solution, select all of them
Edit the Build Action property and make it NativeBinary
Edit the Copy to Output Directory and make it Copy Always

That's it. This worked for me, i published my application and it worked on a windows tablet. Cheers

I didn't find the `NativeBinary` option from step 5. – Leonel Sanches da Silva May 19 '16 at 01:08 — Leonel Sanches da Silva, May 19 '16 at 01:08

score 2 · Answer 3 · answered Sep 10 '14 at 12:39

2

try this

check that the project target is x86 because the assembly will not work in 64. then check if the FFMPEG dll is in the same directory of your application.

answered Sep 10 '14 at 12:39

Ateeq

797
2
9
27

Marcin · Answer 4 · 2014-09-10T06:24:11.977

0

try this tool: Dependency Walker It save my time few times.

EDIT: Sorry I saw last comment too late.

edited Sep 10 '14 at 06:24

answered Sep 10 '14 at 06:14

Marcin

821
12
20

score 0 · Answer 5 · answered Aug 05 '15 at 16:50

0

I solved the problem by rebuilding the project in Release mode (I use Visual studio 2013)

answered Aug 05 '15 at 16:50

Ahmad

8,811
11
76
141

score 0 · Answer 6 · answered Jun 10 '16 at 13:34

0

I tried every recommended solution and none of them worked for me, when i used dependencywalker i noticed that the library has missing files(version 2.2.5). So i downloaded previous version 2.2.4 and it works fine for me.

answered Jun 10 '16 at 13:34

srinced

124
8

score 0 · Answer 7 · answered Mar 24 '17 at 18:53

In order to fix this error, I change target CPU to X86 to match with architecture of Chilkat-dll component being referenced to. For other dll's, you must select correct target CPU of your project that matches with architecture of the dll component. The error will be solved. Right Click on project name > Properties > Compile > Target CPU --> you will come to Target CPU.

score 0 · Answer 8 · edited Jun 29 '17 at 00:00

0

This worked for me:

Add useLegacyV2RuntimeActivationPolicy="true" to App.Config
Link two dll - AForge.Video.dll, AForge.Video.FFMPEG.dll
Copy to out put folder \AForge.NET Framework-2.2.5\Externals\ffmpeg\bin *.dlls

edited Jun 29 '17 at 00:00

konstantin_doncov

2,725
4
40
100

answered Jun 28 '17 at 21:18

Eduardo Preto

21
1
1
8

Could not load or assembly or one of its dependencies

8 Answers8