$ tiup cluster --dashboard
Starting component `cluster`: /Users/joshua/.tiup/components/cluster/v1.0.0/cluster --dashboard
Error: unknown flag: --dashboard
Verbose debug logs has been written to /Users/joshua/Desktop/Code/tiup/logs/tiup-cluster-debug-2020-05-29-23-28-35.log.
Error: run `/Users/joshua/.tiup/components/cluster/v1.0.0/cluster` (wd:/Users/joshua/.tiup/data/S0OKVKr) failed: exit status 1
Execute the command: