reanimated version problem (couldn't determine the version of the native part of Reanimated.) - react-native

I am trying to practive this video.
https://youtu.be/R7vyLItMQJw
(The basics of PinchGestureHandler with React Native Reanimated 2)
but my app doesn't work touch.
I get this Error
[Reanimated] Couldn't determine the version of the native part of Reanimated.Did you forget to re-build the app after upgrading react-native-reanimated? If you use Expo Go, you must use the exact version which is bundled into Expo SDK.
How can I solve this problem?
first. I upgraded Expo SDK.
but I got still same error.
second. re-build the app.
but I got still same error.
third. I install reanimated again. but still be same error.

I was having the very same problem right now.
The following solved my issue:
npx expo start --clear
Hope it works for you too.

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Here is the code for Image Picker I used
This is working great in my simulator expo app as well as in iphone expo as well but giving this error while building using eas build -p=ios
I try doing different things and after trying many things I get to know it's because of outdated verions I updated everything in my package.json with the help of expo doctor I see compatible and install them and it's fixed.

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If you have installed your app following the react native cli guide you might want to try running
gradle clean
in your android folder und then try to run your app in the emulator again.
On my first steps with react native I stumpled upon the same issue. :-)

React Native Maps Error - Native component for "AIRMap" does not exist

I’m struggling with the Google Maps API in React Native, for Android.
I’ve followed the installation instructions for Android but I keep receiving the same error (see title) when I try to use the Mapview Component. I'm using the Android Studio emulator.
versions: react native - 0.55.4 / react-native-maps - 0.18.0 and 0.22.0
Haven't found any online solution for Android. Does anyone has a way to get me out of this trouble?
Please, tell me if you want to see my code. Thanks!
I really struggled with this for a few days also. I think it's a bug with the installation process, and it's very frustrating their docs no longer provide manual installation instructions. Honestly, I eventually gave up and used react-native-mapbox-gl

React Native stuck on Loading dependency graph, done and when go to localhost:8081, I see React Native packager is running

Env:
Mac OS X
nodejs 8.9.1
Xcode installed
using boilerplate generated by https://github.com/react-community/create-react-native-app
Symptom:
React Native stuck on Loading dependency graph, done and when go to localhost:8081, I see React Native packager is running.
Also the command line after I did npm start what I got is Loading dependency graph, done. and just stay there, even after I waited for almost 5min.
Actually I found the answer myself.
There is actually nothing wrong. I forgot to start the React Native in the simulator! lol Silly right?
So basically let say if you want to start the iOS simulator in a MacOS, you can just do react-native run-ios --simulator="iPhone 5s" in your project root. Then boom! your project started!
Note that React Native can't really run in the browser, it has to be running inside a phone simulator either iOS or Android.
See official doc for more https://facebook.github.io/react-native/docs/running-on-simulator-ios.html
Have fun!

"babelHelpers.interopRequireDefault is not a function" when upgrading to React Native 0.16.0-rc

I upgraded to react-native 0.16.0-rc, ran npm install, then ran react-native upgrade. When trying to launch the iOS app in a simulator (or device, doesn't matter) I get the error:
[error][tid:com.facebook.React.RCTExceptionsManagerQueue] Unhandled JS Exception: babelHelpers.interopRequireDefault is not a function. (In 'babelHelpers.interopRequireDefault(_reactNative)', 'babelHelpers.interopRequireDefault' is undefined)
I've just about run out of ideas here. Is there something I need to add to my xcode project maybe? Merging the latest react-native templates into mine was a nightmare so maybe something got messed up there.
This problem is discussed in this Github issue and fixed by this commit. You can apply this patch temporarily until it is merged into the project with the version 0.16.