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react-nativeexpowatchman

React-native watchman doesn't work anymore

Few days ago I noticed watchman stopped working. Using a real android device with shake gesture I cannot Reload the app (a reload doesn't take the changes to the code). Live reload and hot reloading don't work either.

The only way I have to get the app take the changes is to kill the packager and relaunch it (often neither this method makes the app takes changes!).

There is a way I can solve? This issue It's pretty frustrating.

Solution

  • I'll answer to myself. After further research, this issue looks to be caused by this option in app.json

    "packagerOpts": {
  "nonPersistent": "--nonPersistent"
}

    which I've added to be able to produce a release build using Expo (otherwise I get error "socket hang up"). It would be nice if some Expo developer would post some infos about this issue and what that option in app.json really does (the docs says nothing).