Can't get watch command to work

[joeworkman]

Discussed in https://github.com/foundation/proton/discussions/20

^{Originally posted by benthien February 22, 2022} Has anyone been able to get the watch command to work in Proton? If so I would like to see an example. The following is a description of my failed attempt

I performed the following steps in Windows 11 WSL, and in a standalone version of Linux-mint 20. In both I get the same error message.

1. created a directory temp
2. ran the command proton init --template=sites
3. ran the command yarn
4. ran the command yarn add browser-sync chokidar -D
5. ran the command proton watch

Here is a screenshot after step 2 (ubuntu in wsl)

Here is a screen shot after steps 3 and 4

Here is a screen shot showing the error after step 5

However, proton build worked properly.