Ionic File not working!

This plugin is not working, and I have been dealing with this for days, but I think I dont have anyting wrong.

I have this

this.file.readAsDataURL(‘file://storage/emulated/0/Download/images-gif-para-fondos-para-celular.gif’, ‘test’).then(result => {
this.imageUpload = result;

And it is not going into the function! The alert, is never displaying, please fix this because it is frustrating, as well, the base64 native plugin that does the same, is not working too so I cant convert that to a base64 that is what I need.

If anyone knows what happen please help
ionic version: 3.9.2
cordova version: 7.0.1