SRX COMMIT FAIL-nterface must be configured under interface

Hi techies,

I am testing SRX and I am getting error while commiting changes. No interface is moving into security zones.

Error is

Interface ge-0/0/2.0 must be configured under interfaces
error: configuration check-out failed

[edit]
root# set security zones security-zone TEST interfaces ge-0/0/2.0

[edit]
root# commit check
[edit security zones security-zone TEST]
  'interfaces ge-0/0/2.0'
    Interface ge-0/0/2.0 must be configured under interfaces
error: configuration check-out failed

Does anyone have any idea what makes it failing?