Problem with installation of OpenCV on ubuntu 20.04

[heebahsaleem]

I have followed this site: https://velog.io/@minukiki/Ubuntu-20.04%EC%97%90-OpenCV-4.4.0-%EC%84%A4%EC%B9%98

However, I am stuck at 96%. I could not understand the issue.

time make -j$(nproc) [ 0%] Built target gen-pkgconfig [ 0%] Built target opencv_videoio_plugins [ 1%] Built target quirc [ 2%] Built target ittnotify [ 3%] Built target ade [ 13%] Built target libwebp [ 19%] Built target libprotobuf [ 28%] Built target opencv_core [ 28%] Built target opencv_version [ 28%] Built target opencv_hdf [ 28%] Built target opencv_flann [ 29%] Built target opencv_surface_matching [ 30%] Built target opencv_ml [ 38%] Built target opencv_imgproc [ 38%] Built target opencv_quality [ 38%] Built target opencv_plot [ 39%] Built target opencv_reg [ 40%] Built target opencv_hfs [ 40%] Built target opencv_freetype [ 41%] Built target opencv_img_hash [ 41%] Built target opencv_phase_unwrapping [ 41%] Built target opencv_intensity_transform [ 41%] Built target opencv_fuzzy [ 42%] Built target opencv_alphamat [ 44%] Built target opencv_photo [ 46%] Built target opencv_imgcodecs [ 56%] Built target opencv_dnn [ 57%] Built target opencv_xphoto [ 60%] Built target opencv_features2d [ 60%] Built target opencv_dnn_superres [ 60%] Built target opencv_text [ 61%] Built target opencv_line_descriptor [ 62%] Built target opencv_videoio [ 63%] Built target opencv_saliency [ 66%] Built target opencv_datasets [ 66%] Built target opencv_highgui [ 69%] Built target opencv_calib3d [ 69%] Linking CXX executable ../../bin/opencv_annotation [ 69%] Linking CXX executable ../../bin/opencv_visualisation [ 69%] Built target opencv_dnn_objdetect [ 70%] Built target opencv_rapid [ 70%] Built target opencv_aruco [ 70%] Built target opencv_ccalib [ 70%] Built target opencv_structured_light [ 71%] Built target opencv_objdetect [ 71%] Built target opencv_shape [ 72%] Built target opencv_bioinspired [ 72%] Linking CXX executable ../../bin/opencv_interactive-calibration [ 73%] Built target opencv_video [ 73%] Built target opencv_xobjdetect [ 74%] Built target opencv_dpm [ 76%] Built target opencv_rgbd [ 77%] Built target opencv_bgsegm [ 77%] Built target opencv_waldboost_detector [ 81%] Built target opencv_tracking [ 82%] Built target opencv_face [ 83%] Built target opencv_videostab [ 89%] Built target opencv_gapi [ 90%] Built target opencv_stereo [ 93%] Built target opencv_xfeatures2d [ 96%] Built target opencv_ximgproc /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference toffi_type_uint32@LIBFFI_BASE_7.0' /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference to ffi_type_sint32@LIBFFI_BASE_7.0' /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference to ffi_type_pointer@LIBFFI_BASE_7.0' /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference to ffi_type_void@LIBFFI_BASE_7.0' /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference to ffi_prep_cif@LIBFFI_BASE_7.0' /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference to ffi_call@LIBFFI_BASE_7.0' collect2: error: ld returned 1 exit status make[2]: *** [apps/annotation/CMakeFiles/opencv_annotation.dir/build.make:89: bin/opencv_annotation] Error 1 make[1]: *** [CMakeFiles/Makefile2:5434: apps/annotation/CMakeFiles/opencv_annotation.dir/all] Error 2 make[1]: *** Waiting for unfinished jobs.... [ 97%] Built target opencv_stitching /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference to ffi_type_uint32@LIBFFI_BASE_7.0' /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference to ffi_type_sint32@LIBFFI_BASE_7.0' /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference to ffi_type_pointer@LIBFFI_BASE_7.0' /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference to ffi_type_void@LIBFFI_BASE_7.0' /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference to ffi_prep_cif@LIBFFI_BASE_7.0' /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference to ffi_call@LIBFFI_BASE_7.0' collect2: error: ld returned 1 exit status make[2]: *** [apps/visualisation/CMakeFiles/opencv_visualisation.dir/build.make:89: bin/opencv_visualisation] Error 1 make[1]: *** [CMakeFiles/Makefile2:5465: apps/visualisation/CMakeFiles/opencv_visualisation.dir/all] Error 2 [ 98%] Built target opencv_optflow /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference to ffi_type_uint32@LIBFFI_BASE_7.0' /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference to ffi_type_sint32@LIBFFI_BASE_7.0' /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference to ffi_type_pointer@LIBFFI_BASE_7.0' /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference to ffi_type_void@LIBFFI_BASE_7.0' /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference to ffi_prep_cif@LIBFFI_BASE_7.0' /usr/bin/ld: /lib/x86_64-linux-gnu/libwayland-client.so.0: undefined reference to `ffi_call@LIBFFI_BASE_7.0' collect2: error: ld returned 1 exit status make[2]: *** [apps/interactive-calibration/CMakeFiles/opencv_interactive-calibration.dir/build.make:168: bin/opencv_interactive-calibration] Error 1 make[1]: *** [CMakeFiles/Makefile2:5500: apps/interactive-calibration/CMakeFiles/opencv_interactive-calibration.dir/all] Error 2 make: *** [Makefile:163: all] Error 2

real 0m0.633s user 0m1.734s sys 0m0.651s`