Is it necessary to pay attention to non-error prompts? like no package ‘***’ found？

C++
1

These prompts exist during the compilation of OPENCV, but no error is reported after the compilation. Generally, if there is no error prompt, I will not pay attention to the information, but I am also worried about it. So, I want to know whether it is necessary to solve these non-error prompts? Thank you.

*
*
*
Found OpenEXR: /usr/lib/x86_64-linux-gnu/libIlmImf.so
-- Checking for module 'gtk+-3.0'
--   Found gtk+-3.0, version 3.22.30
-- Checking for module 'gthread-2.0'
--   Found gthread-2.0, version 2.56.4
-- Checking for module 'gstreamer-base-1.0'
--   No package 'gstreamer-base-1.0' found
-- Checking for module 'gstreamer-video-1.0'
--   No package 'gstreamer-video-1.0' found
-- Checking for module 'gstreamer-app-1.0'
--   No package 'gstreamer-app-1.0' found
-- Checking for module 'gstreamer-riff-1.0'
--   No package 'gstreamer-riff-1.0' found
-- Checking for module 'gstreamer-pbutils-1.0'
--   No package 'gstreamer-pbutils-1.0' found
-- Checking for module 'gstreamer-base-0.10'
--   No package 'gstreamer-base-0.10' found
-- Checking for module 'gstreamer-video-0.10'
--   No package 'gstreamer-video-0.10' found
-- Checking for module 'gstreamer-app-0.10'
--   No package 'gstreamer-app-0.10' found
-- Checking for module 'gstreamer-riff-0.10'
--   No package 'gstreamer-riff-0.10' found
-- Checking for module 'gstreamer-pbutils-0.10'
--   No package 'gstreamer-pbutils-0.10' found
-- Checking for module 'libdc1394-2'
--   Found libdc1394-2, version 2.2.5
-- Looking for linux/videodev.h
-- Looking for linux/videodev.h - not found
-- Looking for linux/videodev2.h
*****
*****
-- Could not find OpenBLAS include. Turning OpenBLAS_FOUND off
-- Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off
-- Could NOT find Atlas (missing: Atlas_CLAPACK_INCLUDE_DIR) 
-- Looking for dgemm_
-- Looking for dgemm_ - found
-- Looking for pthread.h
-- Looking for pthread.h - found
********
********
- The imported target "vtkRenderingPythonTkWidgets" references the file
   "/usr/lib/x86_64-linux-gnu/libvtkRenderingPythonTkWidgets.so"
but this file does not exist.  Possible reasons include:
* The file was deleted, renamed, or moved to another location.
* An install or uninstall procedure did not complete successfully.
* The installation package was faulty and contained
   "/usr/lib/cmake/vtk-6.3/VTKTargets.cmake"
but not all the files it references.
**********
-- 
-- Configuring done
-- Generating done
-- Build files have been written to: /home/timothy/Documents/opencv-3.4.1/build
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