1.docker运行报错docker0: iptables: No chain/target/match by that nam?

启动docker服务报错 Error response from daemon: No such container: yn-userservice-30000 26126ca87430b74c3987817492cc890e72c36e2fec10d807e362a12f22365160 /usr/bin/docker-current: Error response from daemon: driver failed programming external  connectivity on endpoint yn-userservice-30000 (5d083ef51f932ac24936713ab3bc1cece9d47feabf4a916cf5da12a4fb2a122a):    (iptables failed: iptables --wait -t nat -A DOCKER -p tcp -d 0/0 --dport 30000 -j DNAT --to-  destination 172.17.0.2:30000 ! -i docker0: iptables: No chain/target/match by that name.

  答: 

systemctl stop docker

iptables-save > /etc/sysconfig/iptables #保存 iptables

systemctl start docker

2.docker build Unable to load the service index for source httpsapi.nuget.orgv3index.json

docker build -t test . --network=host