weave launch --nickame docker-weave WARNING: existing iptables rule '-A FORWARD -j REJECT --reject-with icmp-host-prohibited' will block name resolution via weaveDNS - please reconfigure your firewall. The weave container has died. Consult the container logs for further details.

It looks like there is a typo in your command. The correct syntax is `weave launch --nickname docker-weave`.

As for the warning message, it suggests that there is an existing iptables rule that might block name resolution via WeaveDNS. You should modify your firewall settings to allow traffic on the appropriate ports or remove the existing iptables rule to fix this issue.

Additionally, if the Weave container continues to die, you should check the container logs for further details on the cause of the failure. You can view the logs by running the following command:

docker logs <container_name_or_id>

Once you have identified the issue, you can work on resolving it and relaunching the Weave network.