Not able to access DB from SQL Developer

Hello Experts,

I have installed Oracle 12c on my local system . From command prompt I am able to login to my oracle DB :

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\sloba>sqlplus

SQL*Plus: Release 12.1.0.1.0 Production on Mon Feb 9 17:32:27 2015

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

Enter user-name: sys as sysdba
Enter password:

Connected to:
Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 - 64bit Production
With the Partitioning, OLAP, Advanced Analytics and Real Application Testing opt
ions

SQL>

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But when accessing the same DB from SQL Developer I am getting the below Error:

Error on SQL Developer
LVL 17
Swadhin RaySenior Technical Engineer Asked:
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Swadhin RaySenior Technical Engineer Author Commented:
Checked the log undere "C:\app\oracle\product\12.1.0\dbhome_1\log\sloba-pc\client" :

Oracle Database 12c Clusterware Release 12.1.0.1.0 - Production Copyright 1996, 2013 Oracle. All rights reserved.
2015-02-09 15:46:50.212: [  OCRMSG][196]prom_waitconnect: CONN NOT ESTABLISHED (0,29,1,2)
2015-02-09 15:46:50.212: [  OCRMSG][196]GIPC error [29] msg [gipcretConnectionRefused]
2015-02-09 15:46:50.430: [  OCRMSG][196]prom_connect: error while waiting for connection complete [24]
2015-02-09 15:46:50.540: [ default][196]ut_read_reg:2:ocr registry key SOFTWARE\Oracle\olr cannot be opened. error 2
2015-02-09 15:46:52.743: [  OCRMSG][196]prom_waitconnect: CONN NOT ESTABLISHED (0,29,1,2)
2015-02-09 15:46:52.743: [  OCRMSG][196]GIPC error [29] msg [gipcretConnectionRefused]
2015-02-09 15:46:52.743: [  OCRMSG][196]prom_connect: error while waiting for connection complete [24]
2015-02-09 15:46:52.743: [ default][196]ut_read_reg:2:ocr registry key SOFTWARE\Oracle\olr cannot be opened. error 2
2015-02-09 15:46:53.774: [ default][196]ut_read_reg:2:ocr registry key SOFTWARE\Oracle\olr cannot be opened. error 2

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Listner.ora file has the below details:

# listener.ora Network Configuration File: C:\app\oracle\product\12.1.0\dbhome_1\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = CLRExtProc)
      (ORACLE_HOME = C:\app\oracle\product\12.1.0\dbhome_1)
      (PROGRAM = extproc)
      (ENVS = "EXTPROC_DLLS=ONLY:C:\app\oracle\product\12.1.0\dbhome_1\bin\oraclr12.dll")
    )
    (SID_DESC =
      (GLOBAL_DBNAME = ORCL)
      (ORACLE_HOME = C:\app\oracle\product\12.1.0\dbhome_1)
      (SID_NAME = ORCL)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 10.0.2.15)(PORT = 1521))
    )
  )

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Guy Hengel [angelIII / a3]Billing EngineerCommented:
please post the content of the ORACLE_HOME path, and the tns connection files (tnsnames.ora ...)
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Swadhin RaySenior Technical Engineer Author Commented:
I've requested that this question be deleted for the following reason:

Solved this problem
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Swadhin RaySenior Technical Engineer Author Commented:
The IP address was not added on the HOST file.
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
the corresponding login in sqlplus would be
sys@ORCL as sysdba

I presume that will return the same error as in sql developer

is the listener started (sqlplus is not using the listener for local connections "as sysdb" ...
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Swadhin RaySenior Technical Engineer Author Commented:
Error - Solved
After adding the IP on the host file , now I am able to connect using SQL developer.
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Swadhin RaySenior Technical Engineer Author Commented:
thanks
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