error while loading create database character set

Try the following links for this error:

http://docs.oracle.com/cd/E16655_01/server.121/e26079/e12700.htm

https://community.oracle.com/message/10698711

https://community.oracle.com/message/1894066

https://community.oracle.com/message/115337

https://community.oracle.com/message/145191

https://community.oracle.com/message/1489088

https://community.oracle.com/message/1430545

https://community.oracle.com/message/10796013

https://community.oracle.com/message/124708

https://community.oracle.com/message/1044857

https://community.oracle.com/message/263250

https://community.oracle.com/message/6358762

https://community.oracle.com/message/1761006

https://community.oracle.com/message/9523680

https://community.oracle.com/message/527069

https://community.oracle.com/message/44911

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