“Could not connect to thrift client on port 9090” when exec the step 12

[Natsuyu]

hi,
when I do the step12 as readme, I run "sudo screen -r bmv2" and "simple_switch_CLI
< /Testbed/DAIET/tests/single_switch/commands.txt" in command line. It occurs error:

Could not connect to thrift client on port 9090
Make sure the switch is running and that you have the right port

how can I fix it?

thx

[AmedeoSapio]

What is the output of step 9?