Uncaught Error: Application not found

[Enter steps to reproduce:]

1. ...
2. ...

**Atom**: 1.41.0 x64
**Electron**: 4.2.7
**OS**: elementary OS
**Thrown From**: [atom-medium](https://github.com/ericadamski/atom-medium-upload) package 2.0.1

### Stack Trace

Uncaught Error: Application not found

```
At /home/magnus/.atom/packages/atom-medium/node_modules/rxjs/observable/PromiseObservable.js:76

undefined
```

### Commands

```
-0:15.4.0 medium-upload:toggle (input.hidden-input)
```

### Non-Core Packages

```
atom-medium 2.0.1
atom-updater-linux 1.3.0
document-outline 2.1.2
fountain 0.8.1
language-markdown 0.37.0
markdown-folding 0.3.1
markdown-preview-enhanced 0.17.0
markdown-writer 2.11.9
pdf-view 0.59.0
teletype 0.13.4
toggle-markdown-task 0.7.0
tool-bar 1.2.0
tool-bar-markdown-writer 0.5.0
```