MySQL Cluster setup, receiving error "Specify node id"

I am attempting to set up a MySQL Cluster. I have the following setup: - One management node - Two data nodes - One SQL node Below is the config.ini file: [ndbd default] # Options affecting ndbd processes on all data nodes: NoOfReplicas=1 # Number of replicas DataMemory=256M # How much memory to allocate for data storage IndexMemory=128M # How much memory to allocate for index storage #Directory for Data Node DataDir=/var/lib/mysql-cluster [ndb_mgmd] # Management process options: HostName=x.x.x.21 datadir=/var/lib/mysql-cluster # Storage Nodes [NDBD] HostName=x.x.x.188 DataDir= /var/lib/mysql-cluster [NDBD] HostName=x.x.x.189 DataDir= /var/lib/mysql-cluster # Setup node IDs for MySQL API-servers (clients of the cluster) [mysqld] # SQL node options: hostname=x.x.x.22 Below is my.cnf file [mysqld] ndbcluster # run NDB storage engine ndb-connectstring=X.X.X.21 # location of management server [mysql_cluster] ndb-connectstring=X.X.X.21 # location of management server But when I start command ndb_mgmd -f /etc/config.ini --initial I am getting the following error: > MySQL Cluster Management Server mysql-5.6.28 ndb-7.4.10 > > 2018-05-09 14:29:08 [MgmtSrvr] ERROR -- Could not determine which nodeid to use for this node. Specify it with --ndb-nodeid= on command line Can anyone please help?