使用 imshow 时出现奇怪的错误

Question

我买了一台新电脑，并尝试制作一个简单的程序来显示图像。

int main()
{
    cv::Mat img = cv::imread("fff.png");
    cout << img.rows << endl;
    cv::imshow("efef", img);
    cv::waitKey(1);
}

没有 . 也能正常工作imshow()。有了它我得到这个错误：

[ 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 C:\Users\nox\source\repos\pb\pb\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 C:\Users\nox\source\repos\pb\pb\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 C:\Users\nox\source\repos\pb\pb\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

我没有自己构建它，只是exe从 GitHub 下载的。我在我的笔记本电脑上尝试了完全相同的操作，并且它在那里工作。从源代码构建它会出现相同的错误。

编辑：第三个项目之后它就可以工作了。我不知道为什么。