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react-native-file-download's Issues

Possible Unhandled Promise Rejection (id: 0): undefined is not an object (evaluating 'RNFS.DocumentDirectoryPath')

///////inside package.json

"react-native": "git+https://github.com/exponentjs/react-native#sdk-12.0.0",
"react-native-cache-image": "^1.0.0",
"react-native-file-download": "0.0.10",
"react-native-fs": "^2.3.3",

///////inside component

const FileDownload = require('react-native-file-download');
const RNFS = require('react-native-fs');
const URL = downloadpath;
const DEST = RNFS.DocumentDirectoryPath
const fileName = 'zip.zip'
const headers = {
'Accept-Language': 'en-US'
}

FileDownload.addListener(URL, (info) => {
console.log(complete ${(info.totalBytesWritten / info.totalBytesExpectedToWrite * 100)}%);
});

FileDownload.download(URL, "DEST", fileName, headers)
.then((response) => {
console.log(downloaded! file saved to: ${response})
})
.catch((error) => {
console.log(error)
})

cannot read property 'download' of undefined

var RNFileDownload = NativeModules.RNFileDownload;
var promisify = require("es6-promisify")

let progressEventName = 'RNFileDownloadProgress'
let progressEventTable = {}
var _download = promisify(RNFileDownload.download)

var _error = (err) => {
throw err
}
in index.ios.js file of package line number 12

I am using
"react": "16.0.0-alpha.12",
"react-native": "0.47.2",
xcode-8.3.2

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