I see similar query raised before as well.
Solved: Error create SVM - NetApp Community
From the query it looks like you are creating - New SVM?
From the GUI, under Storage SVMs, when you click "Add" (Don't select Manage Administrator Account)- Just click 'Save'.
Please note - SVM management LIFs can be created only on data ports. Check if there are suitable data ports ? For NAS (NFS/CIFS), you don't need SVM Management LIFs anyway.
Once SVM is created, from the GUI - | Under Network | Overview | Click - Add interface, try adding NFS LIF.
From CLI: You can also try these command
::> network interface create -vserver svm0 -lif <nfs_lif_name> -data-protocol nfs -address x.x.x.x -netmask x.x.x.x -home-node <press tab> -home-port <press tab>
::> network port show -fields node,port,health-status