OpenCV highgui220.dll missing - c++

After installing Opencv2.2 using this tutorial I tried to run a simple sample script. It gave me the following error, however: The program can't start because opencv_highgui220.dll is missing from your computer. Try reinstalling the program to fix this problem. But I did, in fact, add the .dll to the Library Directories. I actually did everything the tutorial did too. I also tried to copy the .dll file to the general visual studio lib folder and then tried this #pragma comment (lib, opencv_highgui220) but I got the same error. Does anyone know how it is possible visual C++ still thinks the .dll does not exist? Thanks!
The option use library dependence inputs is set to yes.

The DLL is missing from your system's environment and has nothing to do with compiling and linking your executable (i.e. adding the DLL folder to your Library directories folder is meaningless).
Add the DLL folder to your system path (System Variable PATH in Environment variables).

Related

Missing libgcc_s_seh-1.dll starting the .exe on Windows

Intro
I have a CMake-based C++ project. Until now I build and ran the project via CLion. Everything worked fine until I tried to run the .exe-file directly (not via CLion).
Problem
When I navigate to the cmake build directory in order to start my program via the executable file, it fails with the following message in the popup: Cannot continue the code execution because libgcc_s so-1.dll was not found. Reinstalling the program may resolve the issue.
I have the following questions
If I interpret the error message correctly, then this dll is missing on my computer. So I ask myself, why does my program still work when I start it via the development environment (CLion), although the error message expressly states that the source code requires this dll?
Is it the fault of my application/source code that the error appears or rather the current state of my computer? If the former, how can I prevent this error from appearing for other users?
What is the best way to fix this error? It's obvious that I need to download this dll, but where is the best place to put it (which directory and environment variable to use on Window)?
Which source is trustworthy to download this dll? I don't want to download any malware under this dll-name.
Optional: What kind of library is that? What functionalities does it offer?
Additional information
I use CMake as my build tool, CLion as the IDE and MinGW as the compiler.
What I have did so far?
I made sure it still works through the IDE.
I found this dll does not exist in the MinGW installation folder.
I searched the web for more information. Unfortunately, there are only pages unknown to me that only offer the download of this dll. That doesn't satisfy me.
I found the cause of my problem: I had two MingGW installations on my machine. Once the installation that comes with CLion and a separate one. The latter did not have the required dll. However, CLion used its own installation, which in turn owns the DLL. So the solution was to remove the separate installation and include the path to the CLion installation's bin/ directory in the PATH environment variable.
This file is part of MinGW-w64 when using SEH as exception model (as opposed to Dwarf or SJLJ). You need to distribute the .dll files your .exe file(s) depend on in the same folder as the .exe file(s).
If you don't have that file, then you probably have been using libraries compiled with different versions of GCC/MinGW(-w64). I recommend building everything with the same compiler to ensure stable binaries.
Tools like Dependency Walker can help you figure out which .dll files your .exe file depends on.
Or use the command line tool copypedeps -r from https://github.com/brechtsanders/pedeps to copy the .exe files along with it's dependencies.

OpenCV: Code Execution Cannot Proceed, DLLs Missing

I'm making a program using OpenCV and I need feature matching. I was previously using OpenCV3 but apparently getting SURF to work is a bit of a hassle so I switched to OpenCV2.4
I downloaded the pre-built libraries and I want to use them on Visual studio but I have a problem, when I run the program I get messages like this:
When I click ok I get more follow up messages complaining about other missing dlls. I tries re-installing but still get this error.
Here are my settings:
Under C/C++>General: Additional Include Directores:
C:\opencv2.4\opencv\build\include
Under Linker>General: Additional Library Directories:
C:\opencv2.4\opencv\build\x64\vc14\lib
C:\opencv2.4\opencv\build\x64\vc14\bin
Under Linker>Incput: Additional Dependencies:
opencv_calib3d2413.lib
opencv_contrib2413.lib
opencv_core2413.lib
opencv_features2d2413.lib
opencv_flann2413.lib
opencv_gpu2413.lib
opencv_highgui2413.lib
opencv_imgproc2413.lib
opencv_legacy2413.lib
opencv_ml2413.lib
opencv_nonfree2413.lib
opencv_objdetect2413.lib
opencv_ocl2413.lib
opencv_photo2413.lib
opencv_stitching2413.lib
opencv_superres2413.lib
opencv_ts2413.lib
opencv_video2413.lib
opencv_videostab2413.lib
I've also tried editing the Environment Variables under Path I've added the include\ bin\ and lib\ directories. I have absolutely no idea how to fix this problem. I know the dlls are there.
I copied and pasted the dlls from the bin\ directory into my solution directory and everything works fine now.
I'm not sure why adding the bin\ to the path didn't work but anyway here's the solution to that problem.
The execution program did not find the DLL.
Under "Linker>General: Additional Library Directories" it expect the path for .lib files, but the DLL are searched by the program during the executio, so in the current folder and in the PATH folders.
Put the Dll's into the execution folder or modify the PATH to add the DLL's folder (in this last case remember to restart Visual Studio).
Cheers

How do I inform the debugger of the location of run-time linked DLL files?

I have a C++ program that uses the freeglut library (and hence requires the freeglut.dll at run-time. I have added the folder C:\Program Files\Common Files\freeglut\bin to my PATH environment variable.
To confirm that the location is correct, when I compile my program (debug build) and run the resulting .exe file, it works fine (the freeglut.dll file is not in the same directory as the executable).
However, when I run the program directly from the VS2012 debugger, I get this message:
The program can't start because freeglut.dll is missing from your computer. Try reinstalling the program to fix this problem.
I know that one solution is to place the freeglut.dll file in the directory of the executable. This is what I've been doing so far, but I would much rather simply inform VS2012 (or my program) of where to find the dll file. Note that this post also seems loosely related, but it doesn't seem to contain an answer relevant to what I am trying to achieve (I just want the debugger to look in the same place for DLLs as any other program!).
How do I achieve this in VS2012? Icing on the question cake would be an explanation as to why the debugger doesn't just look in the PATH variable like any other program...
You can also set project based Environment:
Open project Properties
Go to Configuration Properites -> Debugging
Enter the path in Environment, eg:
PATH=$(PATH);C:\Program Files\Common Files\freeglut\bin
Restart Visual Studio after modifying your PATH variable.
What I did actually worked. I just didn't restart VS...

SDL.dll is missing from my computer - VS 2010

I'm trying to compile a SDL-program I've written, but when I do, this error shows up:
The program can't start because SDL.dll is missing from your computer.
Try reinstalling the program to fix this problem
I have no idea as to why. I have SDL.dll.
I have put it in the correct folder: C:\Windows\System32.
I have the correct PATHS to all the SDL headers and such as well.
VS says:
Build succeeded: 1
and THEN the error above pops up on screen.
Add it into your debug folder or whatever directory your program is currently located at.
SDL.dll has to either be in the same directory as your application, or in a directory that's in the PATH environment variable.
IfSDL.dll is 32-bit and you're running a 64-bit system you have to place the dll into /Windows/SysWOW64/ rather than /Windows/System32/, which is used for 64-bit dlls.
EDIT:
You probably shouldn't be deploying your DLLs by copying them into the System32 directory, unless they're common libraries that are used by several applications, and even then I would use discretion. For example, an application could update the DLL, which could break other applications that rely on an older version of the library.
Instead, copy the DLLs into the same directory that the executable is being built in. If you're building and executing with Visual Studio it will look for the DLL in the Project directory, where your source files are probably located.
Just place your SDL.dll in the same folder and your problem will be solved.
And to answer to your problem with the PATH, you can specify in visual studio where he will look for executables while debugging. Maybe this isn't set correctly and that's why VS can't find SDL.dll?

freeglut.dll missing

I am reading the OpenGl superbible, and on the very first triangle program it will not run.
the program compiles just fine but when i run it, it gave me the error message freeglut.dll is missing from your computer. I downloaded that and put it in the correct directory, and it said that MSVCR71.dll was missing, so i downloaded that and put it in the correct directory and it began to say "The procedure entry point __glutCreateWindowWithExit could not be located in the dynamic link library freeglut.dll." does anyone know what i am doing wrong? i followed all the directions that the book told me.
You can't just grab random DLLs off the interwebtubes and dump them on your PC. There are versioning issues to consider that you're completely bypassing. It should have been a hint when the MSVC runtime dependency didn't link up.
Install the freeGLUT package properly, in its entirety.
I have had the same problem. Follow these steps:
Assuming that you have performed all steps given in the book.
Download the source code from companion siteā€¦I think the folder is SB5 and its 92 MB.
Then build the project named 'freeglut.vcproj'.
It will produce freeglut.dll apart from other files.Put freeglut.dll into c:\windows\syswow64 folder and all is done.
You could just include the dll wherever your executable is, if you are running this MSVC, then you could for example put the dll inside of your Debug folder. Cleaning the folder would remove everything except that dll so you wouldnt have to worry about constantly recopying it. Furthermore, if you want an alternative solution you could just put the dll inside of you Windows/System32 folder, or in the case of 64 bit architectures you could put it inside of the System/SysWow64 folder
The freeglut.dll should be placed in the VS project folder. The dll is part of the MSVC package - http://www.transmissionzero.co.uk/software/freeglut-devel/
Isn't there any options on the compiler where you can link the libraries? For example, if you use DevC++, you should go to Project -> Project Options -> Parameters, and set the Linkers.