Sometimes stray daemons left over from previously running processes will cause strange bugs or errors when upgrading to a new version.
Connection error. Check if full node rpc is running at 8555
Make sure all daemons and chia processes are killed before installing or upgrading.
cd chia-blockchain . ./activate chia stop -d all
ps -Af | grep chia
NOTE: If some Chia processes are still running, try to kill them manually.
chia stop -d all
If all else fails, reboot the machine and restart Chia.
~/.chia/mainnet/log/debug.log
NOTE: Search for WARN and ERROR in particular.
node-eu.chia.net - 8444 node-or.chia.net - 8444 node-apne.chia.net - 8444
ALERT: Only do this as a very last resort.
chia stop all rm ~/.chia/mainnet -fr sh install.sh . ./activate chia init chia start all