EISDIR: illegal operation on a directory for readFile method

```
Error: EISDIR: illegal operation on a directory, read
at Object.readSync (fs.js:592:3)
at tryReadSync (fs.js:366:20)
at Object.readFileSync (fs.js:403:19)
at UnableToResolveError.buildCodeFrameMessage (/Users/ruhan/Desktop/pickrr/pickrr-mobile-app/Pickrr/node_modules/metro/src/node-haste/DependencyGraph/ModuleResolution.js:347:17)
at new UnableToResolveError (/Users/ruhan/Desktop/pickrr/pickrr-mobile-app/Pickrr/node_modules/metro/src/node-haste/DependencyGraph/ModuleResolution.js:333:35)
at ModuleResolver.resolveDependency (/Users/ruhan/Desktop/pickrr/pickrr-mobile-app/Pickrr/node_modules/metro/src/node-haste/DependencyGraph/ModuleResolution.js:211:15)
at DependencyGraph.resolveDependency (/Users/ruhan/Desktop/pickrr/pickrr-mobile-app/Pickrr/node_modules/metro/src/node-haste/DependencyGraph.js:413:43)
at /Users/ruhan/Desktop/pickrr/pickrr-mobile-app/Pickrr/node_modules/metro/src/lib/transformHelpers.js:317:42
at /Users/ruhan/Desktop/pickrr/pickrr-mobile-app/Pickrr/node_modules/metro/src/Server.js:1471:14
at Generator.next ()
```

Version -> "react-native-fs": "^2.17.0", "react-native": "0.64.0",
Device -> Mac
Using React native CLI
Sample Code ->

```
const handlePress = async () => {
try {
const res = await DocumentPicker.pick({
type: [DocumentPicker.types.allFiles],
});
if (res) {
const filePath =
Platform.OS === 'android' ? res.uri : res.uri.replace('file://', '');
const file = await RNFS.readFile(filePath, 'base64');
setFiles({
file,
type: res.type,
size: res.size,
});
}
} catch (err) {
if (DocumentPicker.isCancel(err)) {
// User cancelled the picker, exit any dialogs or menus and move on
} else {
Alert.alert(err.message);
}
}
};
```