Error: Cannot find module "."

When trying to use the In App features to get the current version number I get the error

`Error: Cannot find module "."` in the browsers console, causing the rest of the app to crash.

I have added

`node: {
fs: 'empty'
},`

To my Webpack configuration in order to fix the other current open issue [Missing dependency `fs`](https://github.com/delvedor/appversion/issues)

```
import {
getAppVersion,
getAppVersionSync,
composePattern,
composePatternSync
} from 'appversion';

componentDidMount() {

console.log(getAppVersionSync());
console.log(getAppVersionSync().version);

getAppVersion((err, data) => {
if (err) console.log(err);
console.log(data);
});

console.log(composePatternSync('M.m.p-Ss n-d'));

composePattern('M.m.p-Ss n-d', (ptt) => {
console.log(ptt);
});

}
```

Anyone got any ideas?

Thanks,
Chris