Installed QGIS 3 in prescribed manner. (i.e. FIRST python, then GDAL, then QGIS 3). Then installed matplotlib manually by typing "sudo pip3 install matplotlib" into terminal. Then, (as per instructions on https://fromgistors.blogspot.com/p/plugin-installation2.html) I went to https://www.kyngchaos.com/software/python/ to download:

  • NumPy 1.9.2-1
  • SciPy 0.16.0-1

Did not download matplotlib 1.4.3-1 because I believe I installed that when I typed "sudo pip3 install matplotlib" into terminal.

Rebooted macbook (OS 10.14.2) Started QGIS 3 alright. Went into manage plugins and clicked : "re-install semi-automatic classification plugin". QGIS 3 just crashed.

What's going on ?


1 Answer 1


I had the same problem and I fixed it by doing:

  1. sudo apt-get install python3-pip
  2. pip3 install numpy
  3. pip3 install scipy

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.