polar: Bug: Compile error when running `yarn dev`

Describe the bug

Working from the instructions in the contributing doc, I ran into this compile error when setting up my environment:

[dev:app] Failed to compile.
[dev:app] 
[dev:app] ./src/utils/network.ts
[dev:app]   Line 0:  Parsing error: Cannot read property 'map' of undefined

To Reproduce Steps to reproduce the behavior:

1. Clone the repo
2. yarn
3. yarn dev

Expected behavior App starts up

Screenshots

Desktop (please complete the following information):

• OS: macOS Catalina v10.15.7
• Polar Version: master
• Docker Version: 19.03.13
• Docker Compose Version: 1.27.4

Additional context N/A