Stuck at 5%: Connecting to directory server

I used the command:
sudo docker-compose up
to build a default network.
But when I tried to use the command:
curl -vL google.com --proxy socks5://localhost:9050
I failed to connect with the prompt:

*   Trying 127.0.0.1:9050...
* SOCKS5 connect to IPv6 2607:f8b0:4004:c1b::71:80 (locally resolved)
* Can't complete SOCKS5 connection to google.com. (6)
* Closing connection 0
curl: (97) Can't complete SOCKS5 connection to google.com. (6)

I searched the logs and found:

[warn] Problem bootstrapping. Stuck at 5%: Connecting to directory server. (Connection refused; CONNECTREFUSED; count 14; recommendation warn; host F7AC491A000055092A185947A3D5FD3226786AF4 at 172.18.0.2:7000)

in private-tor-network-client-1

How could this be? I tried several times but every time the same result as above.