Error local network configuration is invalid

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Hi guys

After I went through the beginner tutorial, I encountered problem like this at the end when running roswtf:

Loaded plugin tf.tfwtf
No package or stack in context
================================================================================
Static checks summary:

Found 1 error(s).

ERROR Local network configuration is invalid: Local hostname [lycoris-iv] resolves to [fe80::57c5:c39b:9e1c:5892,2406:3003:206b:238f:3489:6fbb:96ce:2e22,2406:3003:206b:238f:2c9a:1e84:22ef:9f71], which does not appear to be a local IP address ['127.0.0.1', '192.168.1.146'].
================================================================================

ROS Master does not appear to be running.
Online graph checks will not be run.
ROS_MASTER_URI is [http://localhost:11311]

Have anyone encountered this as well before? I need help T.T