I am getting this error while connecting SQL developer first time.
Status : Failure -Test failed: ORA-00604: error occurred at recursive SQL level 1 ORA-12705: Cannot access NLS data files or invalid environment specified.
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3Possible duplicate of [ORA-12705: Cannot access NLS data files or invalid environment](https://stackoverflow.com/questions/7700330/ora-12705-cannot-access-nls-data-files-or-invalid-environment) – default locale May 05 '18 at 05:18
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Show us what you have set in your preferences on the NLS page – thatjeffsmith May 05 '18 at 06:26
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problem has been solved .i have change my regional language. – student May 05 '18 at 17:00