AccountManager not recognised by Android Studio

Hi , This is my code.

XMPPTCPConnectionConfiguration.Builder configBuilder =XMPPTCPConnectionConfiguration.builder();
     configBuilder.setUsernameAndPassword("X@X.com","XXX");
   //configBuilder.setResource("test");
     configBuilder.setPort(5222);
     configBuilder.setCustomSSLContext(context);
     configBuilder.setDebuggerEnabled(true);
//configBuilder.setSocketFactory(SSLSocketFactory.getDefault());
     configBuilder.setSecurityMode(ConnectionConfiguration.SecurityMode.required);
     configBuilder.setHost("X.X.X.X");
     configBuilder.setServiceName("X.com");  
     SASLMechanism mechanism =newSASLPlainMechanism();
     SASLAuthentication.registerSASLMechanism(mechanism);
     SASLAuthentication.blacklistSASLMechanism("SCRAM-SHA-1");
     SASLAuthentication.blacklistSASLMechanism("DIGEST-MD5");
     SASLAuthentication.unBlacklistSASLMechanism("PLAIN");  

     finalXMPPTCPConnection connection =newXMPPTCPConnection(configBuilder.build()); 

     try{ 
          connection.connect();
          Log.i("App1-conn","CONENCTION WORKS");

                     AccountManager accountmanager =null;

Now I have imported org.jivesoftware.smack.*; But the Android Studio Says Cannot Recognize AccountManager. (Although It allows me to make object of simple MANAGER CLASS (shows in intellisense) but of not AccountManager.

The grandle File is

compile "org.igniterealtime.smack:smack-android:4.1.0"
compile "org.igniterealtime.smack:smack-tcp:4.1.0"

Flow , @Stefano , benjamin , matt  , dombiak_gaston