Have you tried restarting you packager/emulator/computer? Maybe check this issue: #306. Look at watchman, auto-saving.

restart packager , computer have no effect. i have no idea with this

+1, I got the same problem, live load and hot load both not working.
The js file only transformed once when I start the packager.
It also toke so long time to finish. here is the log :

[11:52:39] request:/index.android.bundle?platform=android&dev=true&hot=t
rue&minify=false
[11:52:39] find dependencies
[11:56:49] Crawling File System (261278ms)
[11:56:49] Building in-memory fs for JavaScript
[11:56:51] Building in-memory fs for JavaScript (1743ms)
[11:56:51] Building in-memory fs for Assets
[11:56:52] Building in-memory fs for Assets (1166ms)
[11:56:52] Building Haste Map
[11:56:53] Building (deprecated) Asset Map
[11:56:53] Building (deprecated) Asset Map (307ms)
[11:56:53] Building Haste Map (758ms)
[11:56:53] Building Dependency Graph (264980ms)
transformed 528/528 (100%)
[11:56:59] find dependencies (260047ms)
[11:56:59] request:/index.android.bundle?platform=android&dev=true&hot=t
rue&minify=false (260291ms)
[Hot Module Replacement] Client connected

at last . I found problem.

problem still is timeout . but when timeout it not show message for us (still don't know why.).

to solve this problem.

in file "\node_modules\node-haste\lib\FileWatcher\index.js"
you should increase "MAX_WAIT_TIME" variable (example : 360000) ;

and change function "_createWatcher"
from

key: '_createWatcher',
    value: function _createWatcher(rootConfig) {
      var watcher = new WatcherClass(rootConfig.dir, {
        glob: rootConfig.globs,
        dot: false
      });

      return new Promise(function (resolve, reject) {
        var rejectTimeout = setTimeout(function () {
          return reject(new Error(timeoutMessage(WatcherClass)));
        }, MAX_WAIT_TIME);

        watcher.once('ready', function () {
          clearTimeout(rejectTimeout);
          resolve(watcher);
        });
      });
    }

to

key: '_createWatcher',
    value: function _createWatcher(rootConfig) {
      var watcher = new WatcherClass(rootConfig.dir, {
        glob: rootConfig.globs,
        dot: false
      });

      return new Promise(function (resolve, reject) {

        const rejectTimeout = setTimeout(function() {
          reject(new Error([
            'Watcher took too long to load',
            'Try running `watchman version` from your terminal',
            'https://facebook.github.io/watchman/docs/troubleshooting.html',
          ].join('\n')));
        }, MAX_WAIT_TIME);

        watcher.once('ready', function () {
          clearTimeout(rejectTimeout);
          resolve(watcher);
        });
      });
    }

now . every thing run normal . :D

great solution InnerPeace080:+1:

Thanks a lot, PeaceFromInside080 !!! ^_^

How to deal with Windows Platform?
"\node-haste\lib\FileWatcher\index.js" how can I get this file ?install watchman?

finally got the file path :\node_modules\react-native\node_modules\node-haste

thanks

thanks, that's work.

I was stuck with this one for hours. @InnerPeace080 your solution saved my life! Amazing! :)

You saved my day. Your solution works perfect. Thank you so much !!!!