I have been going through the react-native tutorial and ran
react-native init AwesomeApp as detailed in the FB page.
After many trials and errors in setting the correct permissions and path I was able to get the app running on IOS.
Awesome app is in a directory Projects
Now I want to create my own app in the same Projects folder and when I try
react-native init newApp I get
Looks like React Native project already exists in the current
folder. Run this command from a different folder or remove node_modules/react-native
I tried from a different folder and still get the same message.
What's the best way to resolve this, deleting the node_modules/react-native or is there another solution and why the same error in a different folder?
Had the same issue, the solution wasn't obvious and I find it nowhere on the Internet so I'm leaving it here.
You may have installed react-native globally. While you should install react-native-cli globally.
Having the first one installed makes typical react-native commads work (starting an app, linking native modules). The only difference is that init fails with above message. And IIRC calling react-native without arguments reveals the source of the problem with descriptive message that you've globally installed wrong package.
Edit:
On Windows also make sure to use CMD, not PowerShell. PowerShell was calling react-native binary (instead of react-native-cli) from SOMEWHERE (I don't know the source, I don't have it available globally, I removed every single globally installed package and it was still calling it (probably from some locally insalled copy)).
React Native development caused another issues too (can't remember the details, sorry) when used with Powershell, so just stick to CMD on Windows.
You were probably still in the AwesomeApp directory while running react-native init newApp.
Try cd .. back to the Projects directory and run react-native init newApp again.
You will then see newApp directory is created inside the Projects directory.
This error occurs when it is in a folder that you deleted. Try to cd to another folder, and it will work.
In the directory C:\\Users\YourUserName you have a file "nodemodules" and a file named "MyProjectName" .
you should delete nodemodules file.
it works for me!
I ran into this too, Make sure your folder does not have any node modules, if problem persists then install react-native-cli again globally using
yarn add global react-native-cli and then initialize your project.
using react-native init {name}.
I had the same error because in some parent directory was backuped "node_modules" directory.
Error resolved by rename it.
Hello for everyone this problem gonna be solved by became sudo user in your Mac if you're using macbook now. Then start to create your project one more time.
Thanks
Related
Dear stackoverflow community,
I'm not able to find any solution online for my problem. My error is the following:
Can't find variable: require
http://127.0.0.1:19001/node_modules/expo/AppEntry.bundle?platform=android&dev=true&minify=false&hot=false:5:24
global code#http://127.0.0.1:19001/node_modules/expo/AppEntry.bundle?platform=android&dev=true&minify=false&hot=false:701:3
Screenshot Expo Error
It was working perfectly 2 days ago, and (apparently) I didn't change anything since then.
Do you have any idea where it can come from?
I'm using:
expo#~3.0.10
react-native "https://github.com/expo/react-native/archive/sdk-38.0.0.tar.gz"
Very basic configuration. I'm suspecting some kind of miss configuration...
Thanks in advance!
Regards,
Guillaume
Updates 09-02-2020 4pm20:
I tried cleaning caches,
I tried changing directory,
I tried expo init a new app, importing the sources of the previous app, installing dependencies, it worked until I ran expo start -c, then the problem came back,
Still working on it...
Updates 09-02-2020 7pm:
I finally succeed to make it work.
Update expo-cli to the latest version
Initialize a new expo app in another directory
Copy/paste source code
Use expo start -c instead of expo start to make sure no cache is involved in the following steps
Install dependencies one by one to make sure none is the problem
Finally test the app
try by adding, import React from 'react' in the file where you mentioned require
first : expo r -c ,
then : npm start,
finally: use require function
I've tried looking for a way to solve this error. It's occurring to me while I try to install my app with react-native run-android.
Already took a look at the solutions from this thread, but my project isn't named native, ./gradlew clean from the android folder didn't work, and I tried deleting the .gradle folder. I've also tried my own simple solutions that sometimes work for whatever reason - uninstalling the app from my phone before re-running react-native run-android and reopening VSCode.
This error started occurring after I installed react-native-unimodules, following the android instructions. A potential problem I see from this is just that react-native-unimodules is supposed to be for Expo and I'm doing things with React Native CLI, but from what I understood, this is allowed.
My react-native version is 0.61.5, react-native-cli is 2.0.1.
Edit:
build.gradle file, as requested.
Also, I don't know if it's relevant, but since it was part of one of the suggested answers, I'll mention this as well: in the gradle.properties file,
android.useAndroidX=true and android.enableJetifier=true were already present.
This is a pretty common case, but what ive figured out during my app building, these steps always helped.
First you need to add below lines in gradle.properties file
android.useAndroidX=true
android.enableJetifier=true
Then after that you need to install, jetfier via either yarn or npm like :
npm i jetifier // first this then the below
npx jetify
After that again re-bundle your code and then run, hope it helps. Feel free for doubts
I am asking this question for the third time and I don't get it why no one even tries to help on this, is this question not well explained? If you can ask for more information I can give!
I am having trouble created iOS folder inside my react native app(detached) as when I created the app I created it from windows machine and iOS folder didn't come when I wrote: exp detach
Now that I have got a macOS, how can I get to create iOS folder so I can use that to build from xCode. I tried react-native upgrade, this is telling me that I have some version conflicts, so I don't want to upgrade it actually, I just want to have iOS folder on my react native.
What would be the best solution in here?
Interestingly I tried exp detach over my detached app and it created iOS, it's working! hopefully this will help anyone!
Please follow the below steps:
Step I: Ensure below installable are installed
Java Sdk Android Studio
Xcode (in case of OSX)
HomeBrew (in case of OSX to install node)
Node/NPM (Node runs Javascript outside the browser. NPM is used for installing and managing Dependencies. Node and NPM come
together)
Those are some essential installs that you will need in your Project
**Step II: **
For windows/OSX you need to run the following commands in your command prompt/command line:
This is the important part for running a react native project:
**Step II: **
npm install -g react-native-cli
Then you can use this cli to start a new project like this:
**Step III: **
react-native init
Hope this helped you, please vote..
native, I started using EXPO to build with a
create-react-native-app
It was fine until I decided to actually create a IPA file to upload to apple to have more testing done by other users, so I did an init and created the needed files for ios and android deployment.
I am getting errors from Xcode building my IPA file over telling me that there is no scripts folder inside react-native, like
node_modules/react-native/scripts/ios-install-third-party.sh: cannot
execute: No such file or directory
and sure enough opening the folder for node_modules/react-native there is no scripts folder there. I'm not sure what the problem is, the react version I am using is 0.46.1.
Any help is greatly appreciated.
I have the same issue. I find the solution with using old version 0.44.0 -> react-native init --version="0.44.0" app.
Please check your current directory path and please remove your 'whitespace' in any folder name.This is very important.
I solved the issue using the following links:
Got the solution 1
Got the solution 2
Delete third-party folder from node_modules/react-native/
I'm trying to use React native and I am getting an error in xcode that says "Lexical or preprocessor error 'RTCRootView.h' not found." I have checked and this file is in the framework folder and I have tried moving it into the project as well and still have not been able to eliminate the error and successfully build.
In the example directory, run npm install to install the dependencies.
Then, open swipeoutExample.xcodeproj and run.
react-native-swipeout#15.
edit (2015-10-12):
react-native-swipeout has been updated to use the latest react-native including ./ios and ./android directories.
iOS: Open the xcode project in the ./ios directory and run it.
Android: Start a simulator, then run react-native run-android in project root directory. (note: swipeout is currently incompatible with Android, but will be soon.)
Running npm install might work for some people, but it didn't work for me.
What worked for me was in XCode > Product > Clean
Sometimes it might be because the node_modules folder is missing in your project directory.
Move the node_modules folder to your project
run npm install in your project directory
Just faced with the same error. In my case it was because of typing error. I replaced RTCRootView.h with RCTRootView.h (RCT is an abbreviation of ReaCT).