# Got this problem during running from Dos

**URL:** <https://forum.opencv.org/t/got-this-problem-during-running-from-dos/3910>\
**Category:** C++\
**Created:** [June 18, 2021, 10:21am UTC](https://forum.opencv.org/t/got-this-problem-during-running-from-dos/3910 "2021-06-18T10:21:28Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![nazmiz](https://avatars.discourse-cdn.com/v4/letter/n/a9a28c/32.png) [@nazmiz](https://forum.opencv.org/u/nazmiz)\
**Post date:** [June 18, 2021, 10:21am UTC](https://forum.opencv.org/t/got-this-problem-during-running-from-dos/3910/1 "2021-06-18T10:21:28Z")

</div>

Hi, I encountered a weird problem which is got an error.

```nohighlight
[INFO:0] global c:\build\master_winpack-build-win64-vc15\opencv\modules\core\src\parallel\registry_parallel.impl.hpp (96) cv::parallel::ParallelBackendRegistry::ParallelBackendRegistry core(parallel): Enabled backends(3, sorted by priority): ONETBB(1000); TBB(990); OPENMP(980)
[INFO:0] global c:\build\master_winpack-build-win64-vc15\opencv\modules\core\src\utils\plugin_loader.impl.hpp (67) cv::plugin::impl::DynamicLib::libraryLoad load N:\opencv\build\x64\vc15\bin\opencv_core_parallel_onetbb452_64d.dll => FAILED
[INFO:0] global c:\build\master_winpack-build-win64-vc15\opencv\modules\core\src\utils\plugin_loader.impl.hpp (67) cv::plugin::impl::DynamicLib::libraryLoad load opencv_core_parallel_onetbb452_64d.dll => FAILED
[INFO:0] global c:\build\master_winpack-build-win64-vc15\opencv\modules\core\src\utils\plugin_loader.impl.hpp (67) cv::plugin::impl::DynamicLib::libraryLoad load N:\opencv\build\x64\vc15\bin\opencv_core_parallel_tbb452_64d.dll => FAILED
[INFO:0] global c:\build\master_winpack-build-win64-vc15\opencv\modules\core\src\utils\plugin_loader.impl.hpp (67) cv::plugin::impl::DynamicLib::libraryLoad load opencv_core_parallel_tbb452_64d.dll => FAILED
[INFO:0] global c:\build\master_winpack-build-win64-vc15\opencv\modules\core\src\utils\plugin_loader.impl.hpp (67) cv::plugin::impl::DynamicLib::libraryLoad load N:\opencv\build\x64\vc15\bin\opencv_core_parallel_openmp452_64d.dll => FAILED
[INFO:0] global c:\build\master_winpack-build-win64-vc15\opencv\modules\core\src\utils\plugin_loader.impl.hpp (67) cv::plugin::impl::DynamicLib::libraryLoad load opencv_core_parallel_openmp452_64d.dll => FAILED

                GRD method for Cost Computation
                GF method for cost aggregation
                Weight-Median Post-processing
--------------------------------------------------------

 Cost Aggregation in Scale Space

--------------------------------------------------------

```

 ![dad](https://us1.discourse-cdn.com/flex020/uploads/opencv/original/2X/b/b6b35042059caa63b79b9718d70930b8ca752a68.jpeg)

---

<div class="post-metadata">

**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:** [June 18, 2021, 3:58pm UTC](https://forum.opencv.org/t/got-this-problem-during-running-from-dos/3910/2 "2021-06-18T15:58:35Z")

</div>

you’re gonna have to put more care into your question.

for one, there isn’t a question.

for another, you point at _all that_ and wave your hands. half the output is mere `INFO` lines that can be ignored.

and then you haven’t even thought of explaining WHAT it is you’re doing there, shown any source or pointed at some existing project you’re compiling.

oh and screenshots of text is BAD.

you should anticipate such things. DO NOT make this like pulling teeth.

---

<div class="post-metadata">

**Author:** ![berak](https://avatars.discourse-cdn.com/v4/letter/b/85f322/32.png) [@berak](https://forum.opencv.org/u/berak)\
**Post date:** [June 18, 2021, 4:07pm UTC](https://forum.opencv.org/t/got-this-problem-during-running-from-dos/3910/3 "2021-06-18T16:07:13Z")

</div>

those messages are not errors.

there is an option in latest master to “hotswap” parallelization engines at runtime, and those info messages are from there (noone actually _has_ those dlls, they’r enot resdistributed)

so, don’t worry, and no messages in RELEASE build…

---

<div class="post-metadata">

**Author:** ![nazmiz](https://avatars.discourse-cdn.com/v4/letter/n/a9a28c/32.png) [@nazmiz](https://forum.opencv.org/u/nazmiz)\
**Post date:** [June 19, 2021, 4:03am UTC](https://forum.opencv.org/t/got-this-problem-during-running-from-dos/3910/5 "2021-06-19T04:03:56Z")

</div>

Sorry, I will correct my mistake, I hope it will not happen again. I’m also new to the programming, so I’m still learning to improve myself.

---

<div class="post-metadata">

**Author:** ![nazmiz](https://avatars.discourse-cdn.com/v4/letter/n/a9a28c/32.png) [@nazmiz](https://forum.opencv.org/u/nazmiz)\
**Post date:** [June 19, 2021, 4:04am UTC](https://forum.opencv.org/t/got-this-problem-during-running-from-dos/3910/6 "2021-06-19T04:04:33Z")

</div>

Thanks, I thought it came from coding, and some I didn’t patch with visual studio. Thanks for your answer. I’ve found the solution from your answer.