Unhandled promise rejection `_reactNative.NativeModules.RNTimePickerAndroid.open`

Bug

When trying to render the component, it simply does not show, raising the following exception a few seconds later:

[Unhandled promise rejection: TypeError: null is not an object (evaluating '_reactNative.NativeModules.RNTimePickerAndroid.open')]
- node_modules\@react-native-community\datetimepicker\src\timepicker.android.js:39:45 in open$
- node_modules\@babel\runtime\node_modules\regenerator-runtime\runtime.js:45:44 in tryCatch
- node_modules\@babel\runtime\node_modules\regenerator-runtime\runtime.js:271:30 in invoke
- node_modules\@babel\runtime\node_modules\regenerator-runtime\runtime.js:45:44 in tryCatch
- node_modules\@babel\runtime\node_modules\regenerator-runtime\runtime.js:135:28 in invoke
- node_modules\@babel\runtime\node_modules\regenerator-runtime\runtime.js:170:17 in <unknown>
- node_modules\promise\setimmediate\core.js:45:7 in tryCallTwo
- node_modules\promise\setimmediate\core.js:200:23 in doResolve
- node_modules\promise\setimmediate\core.js:66:12 in Promise
- node_modules\@babel\runtime\node_modules\regenerator-runtime\runtime.js:169:27 in callInvokeWithMethodAndArg
- node_modules\@babel\runtime\node_modules\regenerator-runtime\runtime.js:192:38 in enqueue
- node_modules\@babel\runtime\node_modules\regenerator-runtime\runtime.js:216:8 in async
* null:null in open
- node_modules\@react-native-community\datetimepicker\src\datetimepicker.android.js:35:39 in RNDateTimePicker
- node_modules\react-native\Libraries\Renderer\oss\ReactNativeRenderer-dev.js:9473:27 in renderWithHooks
- ... 29 more stack frames from framework internals

Environment info

Running on expo 3.11.3.

Library version: any

Steps To Reproduce

1. Place the component anywhere in the application.
2. Run it.

Expected behavior:

1. Date picker component shows normally.

[gabrieljablonski]

For some reason, RNTimePickerAndroid does not seem to be a thing when using expo. Not sure about when doing bare development.

Changing line 39 inside timepicker.android.js from

return NativeModules.RNTimePickerAndroid.open(options);

to

return NativeModules.TimePickerAndroid.open(options);

fixes the issue.

The complete solution should probably include a check to see if it’s running on expo.

[stoopkid1]

@paulosborne on android, even after running the auto-linking i still had the same error (RN 0.6.1). i was able to get the library working by walking through the manual installation – and noticed my MainApplication.java file had not properly updated (the previous steps were correct though).

protected List<ReactPackage> getPackages() {
  return Arrays.<ReactPackage>asList(
     ...
     new RNDateTimePickerPackage()
  );
}