App dev server does not recompile on changes

[StevePavlin]

If you are reporting a bug, please fill in below. Otherwise feel free to remove this template entirely.

Description

What are you reporting?
The app dev server does not recompile on changes.

Expected behavior

Tell us what you think should happen.
The app dev server should restart.

Actual behavior

Tell us what actually happens.
It does not compile.

Environment

Run these commands in the project folder and fill in their results:

1. npm ls react-scripts (if you haven’t ejected): `-- [email protected]
2. node -v: v4.4.4
3. npm -v: 3.10.5

Then, specify:

1. Operating system: Windows 10 64 Bit
2. Browser and version: Google Chrome 53

Reproducible Demo

Please take the time to create a new app that reproduces the issue.

Alternatively, you could copy your app that experiences the problem and start removing things until you’re left with the minimal reproducible demo.

(Accidentally, you might get to the root of your problem during that process.)

Push to GitHub and paste the link here.

By doing this, you're helping the Create React App contributors a big time!
Demonstrable issues gets fixed faster.

This is not required because I am using the exact fresh build from create-react-app {name}. Here is a demo: https://i.gyazo.com/3d097648393810af1079a7c40915596b.gif

[gaearon]

Does this help?
#659 (comment)

Try disabling "safe write" feature.

[gaearon]

cc @prigara, can/does IntelliJ disable "safe write" by default in React projects?

[prigara]

@gaearon no, we can't disable that for React projects only – it's an IDE general setting. It seems that dev server works good with "safe write" enabled on macOS. On Windows it works not very stable, but still works, disabling "safe write" helps.
To be honest, I'm not sure we can do much on our side – it's the question of dev server's file watcher implementation on Windows.

[gaearon]

Going to close in favor of #659. There are a few possible reasons why this might be happening, let's keep accumulating the knowledge there.

[tianhuil]

Might also be because you are not importing the file in question: wmonk/create-react-app-typescript#228 (comment)