Exception while invoking method 'createUser' Error: Name is required

[Rajasekhar]

Accoutns onCreateUser
I20160216-18:58:16.940(5.5)? Exception while invoking method 'createUser' Error: Name is required
I20160216-18:58:16.940(5.5)? at getErrorObject (packages/aldeed_collection2-core/lib/collection2.js:345:1)
I20160216-18:58:16.940(5.5)? at [object Object].doValidate (packages/aldeed_collection2-core/lib/collection2.js:328:1)
I20160216-18:58:16.940(5.5)? at [object Object].Mongo.Collection.(anonymous function) as insert
I20160216-18:58:16.940(5.5)? at AccountsServer.Ap.insertUserDoc (accounts_server.js:1248:25)
I20160216-18:58:16.940(5.5)? at createUser (password_server.js:980:25)
I20160216-18:58:16.940(5.5)? at password_server.js:1011:20
I20160216-18:58:16.941(5.5)? at tryLoginMethod (accounts_server.js:239:14)
I20160216-18:58:16.941(5.5)? at AccountsServer.Ap._loginMethod (accounts_server.js:372:5)
I20160216-18:58:16.941(5.5)? at [object Object].Meteor.methods.createUser (password_server.js:997:19)
I20160216-18:58:16.941(5.5)? at maybeAuditArgumentChecks (livedata_server.js:1698:12)
I20160216-18:58:16.941(5.5)? Sanitized and reported to the client as: Name is required [400]

There is no input filed to enter name while creating admin account for houston.