All Questions
2,872
questions
148
votes
7
answers
116k
views
Cannot add task 'wrapper' as a task with that name already exists
When installing 'react-native init AwesomeProject' I get this error when I run react-native run-android:
Could not determine java version from '11.0.1'.
A quick google suggests I need to update the ...
- 1,511
91
votes
3
answers
49k
views
Warning : Failed child context type: Invalid child context 'virtualizedCell.cellKey' of type 'number' supplied to 'CellRenderer', expected 'string'
I updgraded from react 16.2 -> 16.3-alpha-1 and react-native 0.52->0.54 and I get the warning above in the simulator.
- 4,805
50
votes
10
answers
33k
views
React-native bundling failure. ERROR MESSAGE: "While trying to resolve module 'idb'..... Indeed none of these files exist":
ERROR MESSAGE IN QUESTION:
While trying to resolve module idb from file C:\Users\OG\Desktop\programming\react_native\mealstogo\MealsToGo2\node_modules\@firebase\app\dist\esm\index.esm2017.js, the ...
- 660
47
votes
12
answers
22k
views
react native downloading javascript bundle 100% stuck
when I am trying to execute npm start it works fine, but when i try to run my application by expo the process goes till 100% and after that nothing happens. I am not getting what is exact issue over ...
- 482
45
votes
38
answers
157k
views
Can't load expo app: Something went wrong
I've created an expo app with exp init MyApp command and started it by running exp start in MyApp directory.
Then I'm scanning barcode which was printed in console with expo mobile app on android ...
- 10.4k
35
votes
6
answers
47k
views
Re-render component when navigating the stack with React Navigation
I am currently using react-navigation to do stack- and tab- navigation.
Is it possible to re-render a component every time the user navigates to specific screens? I want to make sure to rerun the ...
- 3,757
33
votes
4
answers
19k
views
Camera Preview in Expo is Distorted
I'm using Camera that comes from expo package and I'm having trouble with camera preview distortion. The preview makes images appear wider in landscape view and thinner in portrait view. Most of the ...
- 525
31
votes
5
answers
29k
views
Error: NativeViewGestureHandler must be used as a descendant of GestureHandlerRootView
I've installed GestureHandler (npx expo install react-native-gesture-handler) and also imported it into my App.tsx file on line 3 with polyfills
import 'react-native-gesture-handler';
was doing it by ...
- 1,585
30
votes
6
answers
96k
views
React Native - navigation issue "undefined is not an object (this.props.navigation.navigate)"
Im following this tutorial https://reactnavigation.org/docs/intro/ and im running into a bit of issues.
Im using the Expo Client app to render my app every time and not a simulator/emulator.
my ...
- 873
30
votes
1
answer
782
views
React Native - iOS - Local image invisible (works on android)
I'm mapping TouchableOpacity with an Image nested inside of it. It works great on Android but on iOS the image is invisible. There is still a 75x75 touchable opacity that I can tap but the image is ...
28
votes
8
answers
50k
views
React navigation 5 hide tab bar from stack navigator
I wanted to know how to hide the bottom tab bar from a specific screen inside my stack navigator that is nested on a material bottom tab bar
This is my code for my stack navigator
import React from '...
- 612
28
votes
2
answers
3k
views
Why does my React Native app build successfully despite TypeScript compiler error?
I've recently started using TypeScript with Expo. I've done all the linter/formatter integrations like typescript-eslint so I can catch most of the errors during coding. To check if the code compiles, ...
- 585
26
votes
7
answers
54k
views
How to fix npm start "cannot determine native SDK version" error?
I'm trying to run my react native code from a github repository on ubuntu by using npm start and expo. When I run npm start I get the follow error:
"Cannot determine which native SDK version your ...
- 379
22
votes
1
answer
1k
views
React native (expo) web view Error net::ERR_CACHE_MISS
I am using react native(expo) and try to use web view package
And i am getting this warning in console and didn't see anything on mobile screen.
"sdkVersion": "36.0.0",
"expo": "~36.0.0",
...
user12500983
21
votes
3
answers
2k
views
React Native EXPO Apple upload fail [closed]
I created the app through Expo.
I uploaded the ipa through the Application Loader, and it was rejected as the message below.
What is the problem?
This bundle is invalid - The Info.plist file for
/...
- 251
20
votes
1
answer
13k
views
How do I create a diagonal border in React Native?
I'm working on building a React Native app based on designs from our designer. The design has several places where there are buttons or shapes with one diagonal line (see the following example). I'...
- 1,732
20
votes
1
answer
48k
views
Jest failed to parse a file. This happens e.g. when your code or its dependencies use non-standard JavaScript syntax
I'm using ignite to create an expo react native app. I'm using this guide https://ignitecookbook.com/docs/recipes/GeneratorComponentTests to create component test files
Here is the first test file
...
- 3,161
19
votes
8
answers
10k
views
Expo Camera only opening once with React Navigation
I set the Expo camera to open on the middle tab with react navigation. However, the camera only opens when I click on that tab the first time. If I switch off of it and go back it's just a black ...
- 211
19
votes
2
answers
8k
views
React Native Expo StackNavigator overlaps Notification bar
I am trying to implement navigation bar for my React Native Expo app. Here is a problem:
"dependencies": {
"expo": "^18.0.3",
"react": "16.0.0-alpha.12",
"react-native": "^0.45.1",
"...
- 43.9k
18
votes
3
answers
49k
views
Warning: Failed prop type: Invalid prop `value` of type `number` supplied to `TextInput`, expected `string`
in react-native, I have:
Warning: Failed prop type: Invalid prop `value` of type `number` supplied to `TextInput`, expected `string`.
I have a postalCode and it is numeric value.
I have set the ...
- 14k
18
votes
2
answers
39k
views
Cannot access State inside Function
I am using React Native for my application, and at one point, I noticed that I have to type this.state.bar[this.state.foo][SOME_NUMBER] every time, within my components.
This works perfectly fine, ...
- 912
18
votes
1
answer
7k
views
What does "api.cache(true)" do in Expo's babel.config.js?
This line appears in the default Expo babel.config.js, but I can't find any reference anywhere to what it does. Is there anyone who knows what this does?
module.exports = function(api) {
api.cache(...
- 12k
17
votes
0
answers
13k
views
Linking requires a build-time setting `scheme` in the project's Expo config (app.config.js or app.json) for production apps [closed]
Linking requires a build-time setting scheme in the project's Expo config (app.config.js or app.json) for production apps, if it's left blank, your app may crash. The scheme does not apply to ...
- 223
16
votes
3
answers
23k
views
Disable Debugging in Expo For React Native App
So I've opened up my react-native app in Expo today (using the iOS simulator) and I am creating by what looks like a debugging overlay.
Screenshot here:
I don't need this and it's blocking some of ...
- 2,262
16
votes
4
answers
6k
views
react native (expo) load markdown files
I'm having some troubles loading markdown files (.md) into my react native (non-detached expo project).
Found this awesome package that allows me to render it. But can't figure out how to load the ...
- 9,220
16
votes
2
answers
3k
views
Is it possible to hide the "BugReporting extraData" in React Native? (Using Expo)
Every time I open a React Native app with Expo, I get this massive message in the console with meta data about the app, that doesn't actually do much to help me debug. Especially because it's the same ...
14
votes
7
answers
11k
views
npm install -g expo-cli fails with "EPERM: operation not permitted, unlink '...\adb.exe'
I receive an error when running
$ npm install -g expo-cli
I have tried reinstalling the node modules as An Administrator but the same error occurs.
Environment:
Windows 10,
Node Version: 10.15.3,
...
- 482
14
votes
3
answers
20k
views
class was expected (declaration of 'com.google.android.gms.location.FusedLocationProviderClient') in react native
This was working fine earlier.
Possible Unhandled Promise Rejection (id: 0):
Error: Encountered an exception while calling native method: Exception occurred while executing exported method ...
- 151
14
votes
5
answers
15k
views
React Native local images load slowly
I'm building an app using React Native with Expo. Everything works fine except the images, they load correctly but it takes about 2 seconds to load, and it's weird because all the images are local ...
- 425
14
votes
1
answer
670
views
Error : Cannot read property fetch. Using jest-expo with react native
TypeError: Cannot read property 'fetch' of undefined
at node_modules/whatwg-fetch/fetch.js:4:8
at Object.<anonymous> (node_modules/whatwg-fetch/fetch.js:466:3)
at Object.<anonymous> ...
- 1,256
13
votes
2
answers
7k
views
I can't run my expo project since I updated expo-sdk
When I try to run my expo project I get this message:
D:\React\myproject>npm start
> start
> expo start
Starting project at D:\React\myproject
Unable to find expo in this project - have you run yarn ...
- 131
13
votes
3
answers
16k
views
Promise allSettled is not a function
I planned updating some Promise.all to Promise.allSettled in my React Native - Expo Project but the function does not Exist. i checked all Versions and everything fits but i still cant use the ...
- 337
13
votes
4
answers
15k
views
View or open PDF files stored locally Expo React Native
Is there a solution to view or open PDF Files using Expo (without Expo eject)?
It's not necessary to open file inside App, it's can be a local filemanager.
What i tried:
Linking does not open ...
user12532331
13
votes
4
answers
3k
views
Load custom native component in react native using expo kit
Im trying to load a custom Android WebView to be able to upload files using html file inputs (by default Android webview wont work with input file). Im using this code, the only difference is that im ...
- 6,034
13
votes
2
answers
16k
views
Remove expo from react native
I've had so many troubles with the tool, I seriously have been debugging expo morethan the app itself.
How might I remove expo completely from CRNA? I would like to use CRNA and it's debugging tools ...
- 171
12
votes
5
answers
13k
views
How to fix react-native error after updating expo to 50.0
When I run npm run ios in terminal, I get the below error
error: node_modules/expo-router/entry.js: [BABEL]: expo-router/babel is deprecated in favor of babel-preset-expo in SDK 50
I tried to ...
12
votes
3
answers
7k
views
Expo on iOS is constantly refreshing my React Native app on MacOS, caused by Dropbox / iCloud
I'm building a simple React Native app and using the Expo iOS app to run it. But Expo is constantly refreshing my app, making it unusable / untestable. It refreshes every few seconds, sometimes ...
- 951
12
votes
5
answers
12k
views
React Native "The expo SDK requires Expo to run. .... this code is not running on Expo."
I am coding with React Native. I don't see that when I first create react-native app for check running. When I implements my code see that. My purpose is generate apk.
app.json
build.gradle
index.js (...
- 123
12
votes
3
answers
6k
views
React Native - Disable Password AutoFill Option on iOS Keyboard
In React Native, how do you disable or prevent the keyboard from displaying the Password Autofill accessory view option? There doesn't seem to be an property for TextInput that handles disabling this ...
- 121
12
votes
2
answers
4k
views
Expo - Network Response Time Out Error (create-react-native-app) (Windows 10)
I have the exact same problem as here: Network Response Time Out Error (create-react-native-app) (expo). Every time I try to scan the QR code from my phone on LAN, I get the network response timeout ...
- 789
12
votes
0
answers
950
views
React Native warnings after upgrading to SDK 49 Expo
Hi i'm getting those warnings after upgrading my react native app to SDK 49
"transform" style array value is deprecated. Use space-separated string functions, e.g., "scaleX(2) rotateX(...
- 121
11
votes
8
answers
41k
views
Value for title can not be cast from ReadablenativeMap to string
Consider:
InsertDataToServer = () => {
const { pinValue1 } = this.state;
const { pinValue2 } = this.state;
const { pinValue3 } = this.state;
const { pinValue4 } = this.state;
var String_3 ...
- 564
11
votes
2
answers
10k
views
React Navigation 5 - How to navigate from headerRight?
i still trying to understand this react navigation 5.0.
Fyi i'm using expo, and right now no problem when navigate from one page to other,
problem is when i put navigation for the headerRight.
i put ...
- 219
11
votes
2
answers
15k
views
React Native Expo Router - Hiding the Stack header on home screen
I'm using expo-router in my React Native Expo app containing 2 screens, app/home.js and app/details.js. There is a Link on home.js that navigates to details.js screen.
Right now both screens have the ...
- 6,591
11
votes
7
answers
17k
views
Expo React Native App crashing on android
Ever since I started programming in React Native with Expo, I have been using an ios physical device together with Expo app. I never had any major issues.
Now i wanted to start fixing any bugs on ...
- 323
11
votes
7
answers
15k
views
Change navigation bar on android with RN with expo?
I started using React Native with Expo and I encountered my first problem. I want to change the color of the navigation bar on Android. Unfortunately, I can't figure out how to do that.
I tried to ...
11
votes
2
answers
6k
views
How to implement Video and/or Audio calling in React Native Expo application
I am building a react native application using Expo and i need to add audio calling and video calling functionalities, however it seems that i cant use react-native-webrtc (Link here) without ejecting ...
- 932
11
votes
2
answers
5k
views
Attempted import error: 'shouldUseActivityState' is not exported from 'react-native-screens'
I'm getting this error :
C:/Users/Mobile/node_modules/@react-navigation/drawer/lib/module/views/ResourceSavingScene.js
Attempted import error: 'shouldUseActivityState' is not exported from 'react-...
- 325
11
votes
0
answers
3k
views
Is there a way to open instagram app on 'add page' from my expo app (react native solution)?
I am new to react-native/expo, so maybe because of it, I can't find any solution.
I want to open 'Instagram app' from my new app. But the Instagram should be opened on 'add' page, where the user can ...
- 367
10
votes
8
answers
28k
views
React-Native File 'expo-module-scripsts/tsconfig.base' not found
my problem is like this
// @generated by expo-module-scripts
{
"extends": "expo-module-scripts/tsconfig.base",
"compilerOptions": {
"outDir": "./...
- 117