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Troubleshoot

Cannot connect to host tentacles.octobot.online:443

octobot_tentacles_manager.api.util.tentacles_management Exception during InstallWorker processing: Cannot connect to host tentacles.octobot.online:443 ssl:default [No address associated with hostname] (ClientConnectorError)
The tentacles server URL has changed, "tentacles" is replaced by "static". Starting from 0.4.0b17, OctoBot uses the latest URL. To use OctoBot previous versions, please first set this environment variable before downloading tentacles:
On Unix systems
export TENTACLES_URL="https://static.octobot.online/repository/tentacles/officials/packages/full/base/0.4.3/any_platform.zip"
python3 start.py tentacles --install --all
On Windows systems
SET TENTACLES_URL=https://static.octobot.online/repository/tentacles/officials/packages/full/base/0.4.3/any_platform.zip
python3 start.py tentacles --install --all
Using Docker
docker run -itd --name OctoBot -p 80:5001 -e TENTACLES_URL="https://static.octobot.online/repository/tentacles/officials/packages/full/base/0.4.3/any_platform.zip" -v $(pwd)/user:/octobot/user -v $(pwd)/tentacles:/octobot/tentacles -v $(pwd)/logs:/octobot/logs drakkarsoftware/octobot:stable
Where 0.4.3 is your OctoBot version.

Windows

Time synchronization

This issue happens when error messages such as 'recvWindow' must be less than ... appear.
Open an administrator terminal (Win + X then A) and type:
net stop w32time
net start w32time
w32tm /resync
w32tm /query /status
Code from serverfault.com
Another solution found by @alpi on discord channel: timesynctool.com

OctoBot freeze

When running OctoBot on Windows, clicking into the OctoBot terminal (Powershell or Cmd) can freeze the log output and therefore freeze OctoBot execution (OctoBot will be waiting for the log to be published to continue).
To fix this issue, untick the "QuickEdit Mode" in your terminal properties and restart it.
To open the properties menu, right click on the terminal window header and select "properties".

CentOS

Install OctoBot on CentOS

Requirements
yum -y update
yum install -y git wget sqlite-devel screen
yum -y groupinstall "Development Tools"
yum -y install openssl-devel bzip2-devel libffi-devel
yum install -y screen
cd /root
wget https://www.python.org/ftp/python/3.8.3/Python-3.8.3.tgz
tar xvf Python-3.8.3.tgz
cd Python-3.8*/
./configure --enable-loadable-sqlite-extensions && make && sudo make install
OctoBot
git clone https://github.com/Drakkar-Software/OctoBot.git
cd OctoBot/
python3.8 -m pip install virtualenv
virtualenv venv
source venv/bin/activate
pip install -Ur requirements.txt
python start.py

Linux

Time synchronization

This issue happens when error messages such as 'recvWindow' must be less than ... appear.
On Debian or Ubuntu, open a terminal and type:
sudo service ntp stop
sudo ntpd -gq
sudo service ntp start
Requires ntp package installation sudo apt-get install ntp.
Code from askubuntu.com.

Installation

During pip install if you have SSL problems, open a terminal and type
pip3 install service_identity --force --upgrade