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Check Installed MATRIX Packages

Run the following command on your Raspberry Pi's terminal to see the currently installed MATRIX packages.

dpkg -l | grep matrix

Reinstall MATRIX HAL

If you experience strange behavior, reinstall MATRIX HAL.

Uninstall the libmatrixio-creator-hal and libmatrixio-creator-hal-dev package.

sudo apt-get --purge remove libmatrixio-creator-hal libmatrixio-creator-hal-dev

Uninstall HAL built from source.

sudo rm -rf /usr/local/include/matrix_hal
sudo rm -rf /usr/local/lib/

Reboot your device.

sudo reboot

Install MATRIX HAL from package or from source.