Gagal Key Di Amazon S3. Padahal Saya Sudah Ambil Key Dengan Benar

Disini ada yang makai aws-sdk? saya ada kesulitan dengan key, padahal key sudah bener mungkin disini mau share tentang Amazon S3 Policy

 { '0':
   { AccessDenied: Access Denied
       at Request.extractError (C:\belajar\kerjaan\test\aws\node_modules\aws-sdk\lib\services\s3.js
:539:35)
       at Request.callListeners (C:\belajar\kerjaan\test\aws\node_modules\aws-sdk\lib\sequential_ex
ecutor.js:105:20)
       at Request.emit (C:\belajar\kerjaan\test\aws\node_modules\aws-sdk\lib\sequential_executor.js
:77:10)
       at Request.emit (C:\belajar\kerjaan\test\aws\node_modules\aws-sdk\lib\request.js:673:14)
       at Request.transition (C:\belajar\kerjaan\test\aws\node_modules\aws-sdk\lib\request.js:22:10
)
       at AcceptorStateMachine.runTo (C:\belajar\kerjaan\test\aws\node_modules\aws-sdk\lib\state_ma
chine.js:14:12)
       at C:\belajar\kerjaan\test\aws\node_modules\aws-sdk\lib\state_machine.js:26:10
       at Request.<anonymous> (C:\belajar\kerjaan\test\aws\node_modules\aws-sdk\lib\request.js:38:9
)
       at Request.<anonymous> (C:\belajar\kerjaan\test\aws\node_modules\aws-sdk\lib\request.js:675:
12)
       at Request.callListeners (C:\belajar\kerjaan\test\aws\node_modules\aws-sdk\lib\sequential_ex
ecutor.js:115:18)
     message: 'Access Denied',
     code: 'AccessDenied',
     region: null,
     time: 2017-03-23T17:48:53.761Z,
     requestId: '435E86140A1E2575',
     extendedRequestId: 'UJY0qEo+IFypoVCZIoe+yS8CWAuSwCE2kuN7cmr0iTf48cr5LjzuQniFQI6JdXC9bLUFBscHtS
w=',
     cfId: undefined,
     statusCode: 403,
     retryable: false,
     retryDelay: 1.9472988685798276 } }