Thanks, but HTTPS and clearing the cache didn’t work for me.
I was upgrading from 2(.?.?) to 2.1.6. (I think it was 2.1.4). I was using the standard interface (not Zimmerman’s).
These instructions are missing some steps:
https://opensprinkler.freshdesk.com/support/solutions/articles/5000631599-installing-and-updating-the-unified-firmware
The missing instructions are (or at least for me, after doing these steps everything works):
sudo reboot
wget https://github.com/rszimm/sprinklers_pi/archive/v1.0.7.tar.gz
tar -xzvf v1.0.7.tar.gz
cd sprinklers_pi-1.0.7
make
cd ~/.
sudo apt-get install libsqlite3-dev build-essential
cd sprinklers_pi-1.0.7
make
sudo make install
sudo /etc/init.d/sprinklers_pi start
This was my first time doing an OpenSprinkler upgrade. So, I didn’t do an export before the upgrade. I have to setup everything again, but this isn’t a big deal.