# Missing opencv dlls

**URL:** <https://forum.opencv.org/t/missing-opencv-dlls/19298>\
**Category:** Uncategorized\
**Created:** [November 15, 2024, 12:05pm UTC](https://forum.opencv.org/t/missing-opencv-dlls/19298 "2024-11-15T12:05:11Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![kameraukko2000](https://avatars.discourse-cdn.com/v4/letter/k/a87d85/32.png) [@kameraukko2000](https://forum.opencv.org/u/kameraukko2000)\
**Post date:** [November 15, 2024, 12:05pm UTC](https://forum.opencv.org/t/missing-opencv-dlls/19298/1 "2024-11-15T12:05:11Z")

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OpenCV is attempting to load GTK-based libraries for its GUI (`opencv_highgui_gtk4100_64.dll`, `opencv_highgui_gtk34100_64.dll`, etc.), but it is failing to do so.

There are also failed attempts to load parallel processing libraries (like `opencv_core_parallel_onetbb4100_64d.dll`, `opencv_core_parallel_tbb4100_64d.dll`, and `opencv_core_parallel_openmp4100_64d.dll`)

Are these issue is impacting the functionality of my application or can i ignore these?  
form of the message:  
[INFO:0@4.174] global plugin\_loader.impl.hpp:67 cv::plugin::impl::DynamicLib::libraryLoad load C:\Program Files\OpenCV\build\x64\vc16\bin\opencv\_core\_parallel\_onetbb4100\_64d.dll =\> FAILED

The application is a 3d camera calibration sample, it makes the calibration and it works, but when i try to use fusion sample to connect whit 2d camera it gives me enum errors?

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**Author:** ![crackwitz](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.opencv.org/crackwitz/32/14_2.png) [@crackwitz](https://forum.opencv.org/u/crackwitz)\
**Post date:** [November 15, 2024, 1:53pm UTC](https://forum.opencv.org/t/missing-opencv-dlls/19298/2 "2024-11-15T13:53:33Z")

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> [@kameraukko2000](#):
>
> [INFO:0@4.174] …

`INFO` means it’s not even a warning.

OpenCV has, or is in the process of gaining, a kind of runtime dispatch for some of its backends (highgui, videoio). What you’re seeing is its thought process. It will look for stuff that might be available, and if it isn’t, that’s fine.

I think you can modulate the verbosity of this. I don’t know off the top of my head.

> [@kameraukko2000](#):
>
> it gives me enum errors

specifics please.

* * *

potentially related: [https://stackoverflow.com/staging-ground/79192142](https://stackoverflow.com/staging-ground/79192142)

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**Author:** ![qqqqq](https://avatars.discourse-cdn.com/v4/letter/q/96bed5/32.png) [@qqqqq](https://forum.opencv.org/u/qqqqq)\
**Post date:** [November 16, 2024, 11:28pm UTC](https://forum.opencv.org/t/missing-opencv-dlls/19298/3 "2024-11-16T23:28:34Z")

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Hello, I am having the same errors.  
Did you find a solution?