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I'm trying to activated EdjeElectronics object detection project on my raspberry pi 4b and when i try to start the object detection it gives me this error: ImportError: libcblas.so.3: cannot open shared object file: no such file or directory.

Can you please give me suggestions on how to solve this error.

EdjeElectronics object detection project: https://github.com/EdjeElectronics/TensorFlow-Object-Detection-on-the-Raspberry-Pi. Thanks in advance.

yonatanoss
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  • libcblas should be part of libatlas3, did you install this dependency? Check that /usr/lib/libcblas.so.3 exists – L.Grozinger Jul 01 '20 at 13:18
  • /usr/lib/libcblas.so.3 does not exist for me but i did sudo apt-get install libatlas-base-dev – yonatanoss Jul 01 '20 at 13:42
  • is there any libcblas.so.3 file existing on your system? try `sudo find / -iname libcblas.so.3` – L.Grozinger Jul 01 '20 at 13:50
  • when i run sudo find / -iname libcblas.so.3 it gives me: find: '/lib/moudels/4.19.118-v7+/kernel/gpu/drm': structure needs cleaning and find: '/run/user/1000/gvfs': premission denied – yonatanoss Jul 01 '20 at 13:55
  • in that case, it would perhaps be more helpful to find out what libatlas-base-dev actually came with. can you run `dpkg-query -L libatlas-base-dev | grep cblas` . do you see it there? – L.Grozinger Jul 01 '20 at 14:00
  • when i run the command it gives me: /usr/include/arm-linux-gnueabihf/cblas-atlas.h, /usr/lib/arm-linux-gnueabihf/libcblas.a and /usr/lib/arm-linux-gnueabihf/libcblas.so – yonatanoss Jul 01 '20 at 14:06
  • in that case, the simplest thing to do might be to add a symlink `libcblas.so.3` to the `libcblas.so` given in the output – L.Grozinger Jul 01 '20 at 14:08
  • how can i add the symlink libcblas.so.3 to the libcblas.so given in the output ? – yonatanoss Jul 01 '20 at 14:11
  • out of interest, is it for sure libatlas3 that you installed? which version does `dpkg -l | grep libatlas-base-dev` produce? – L.Grozinger Jul 01 '20 at 14:16
  • the symlink can be made with `ln -s`, just be sure to put the link somewhere in your library path – L.Grozinger Jul 01 '20 at 14:17
  • when i run dpkg -l | grep libatlas-base-dev it produces the verasion 3.10.3 – yonatanoss Jul 01 '20 at 14:21
  • ok then, do the symlink thing `ln -s /usr/lib/arm-linux-gnueabihf/libcblas.so /usr/lib/arm-linux-gnueabihf/libcblas.so.3` or look at https://stackoverflow.com/questions/53347759/importerror-libcblas-so-3-cannot-open-shared-object-file-no-such-file-or-dire?rq=1 , maybe it works for you too. – L.Grozinger Jul 01 '20 at 14:27
  • when i run the command it gave me ln: failed to create symbolic link '/usr/lib/arm-linux-gnueabihf/libcblas.so.3': file exists and i've already read https://stackoverflow.com/questions/53347759/importerror-libcblas-so-3-cannot-open-shared-object-file-no-such-file-or-dire?rq=1 – yonatanoss Jul 01 '20 at 14:34
  • ok then, if it exists, then it could be that /usr/lib/arm-linux-gnueabihf is not part of your load path? – L.Grozinger Jul 01 '20 at 14:47
  • then how can i check if its apart of my load path? – yonatanoss Jul 01 '20 at 14:49
  • https://www.cyberciti.biz/faq/linux-setting-changing-library-path/ – L.Grozinger Jul 01 '20 at 14:51
  • can you also include the complete stacktrace in the question? – L.Grozinger Jul 01 '20 at 14:52

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