I have created a react-native project XYZApp using react-native init which is pushed in GitHub repo.
Now when I am cloning the project on a different system. following is the directory structure
app/XYZApp
Following is the set of commands and steps I am using.
cd app
brew install node
brew install watchman
#
npm install -g react-native-cli
#
install android studio and required SDKs
#
install X-Code
#
react-native init MyApp
prompt: Directory MyApp already exists. Continue?: (no)
I am typing - yes
npm install [all dependencies]
react-native link
Through all the above steps, some new default files are getting created which runs a default app, with some minor changes in those files I am able to run the app. But I know this is not the correct way of doing this.
I tried several other methods also,
like npm start
I checked several links but could not find the correct method for the setup after cloning.
Most of them are mentioned for create-react-native-app method.
It will be great if someone can help me regarding this.
after cloning
Don't do this
react-native init MyApp
prompt: Directory MyApp already exists. Continue?: (no)
I am typing - yes
npm install [all dependencies]
react-native link
just go to cloned app directory XYZApp and do
npm install
and all set to run the app using
react-native run-android
Update 2019 React Native 0.60.0+:
First you need to install all the node modules by running
npm install
If you're using libraries with native dependencies like react-native-gesture-handler these libraries need to be linked correctly. To do so run
react-native link
For setting up the iOS project correctly you need to install the CocoaPods dependencies:
cd ios && pod install
Related
first time Mac user trying to start a new react-native application. After doing this:
npx react-native init project_adji --template react-native-template-typescript
it fails with the following message:
✔ Downloading template
✔ Copying template
✔ Processing template
✔ Installing Bundler
✖ Installing CocoaPods dependencies (this may take a few minutes)
error warn Multiple Podfiles were found: ios/Podfile,vendor/bundle/ruby/2.7.0/gems/cocoapods-core-1.11.3/lib/cocoapods-core/Podfile. Choosing ios/Podfile automatically. If you would like to select a different one, you can configure it via "project.ios.sourceDir". You can learn more about it here: https://github.com/react-native-community/cli/blob/master/docs/configuration.md
✖ Installing CocoaPods dependencies (this may take a few minutes)
error Error: Looks like your iOS environment is not properly set. Please go to https://reactnative.dev/docs/next/environment-setup and follow the React Native CLI QuickStart guide for macOS and iOS.
I updated the ruby via rbenv to the required version to reach this point (ruby 2.7.5). I couldn't find the exact issue with my setup.
Any tips?
I had exact the same issue here. After some research, I solved by following these steps:
gem uninstall cocoapods
sudo xcodebuild -license accept
Then created a test project to see where if everything works fine by following:
npx react-native init tempProject --skip-install
cd tempProject
yarn install
cd ios
bundle install
bundle exec pod install
I have been working with react-native project in another pc and it has been working correctly. Now I cloned project to another device where I have react-native installed since I work with other project and I cannot run it.
When I run react-native run-android I get this error:
Cannot run program "npx": error=2, No such file or directory
I'm using Android Studio 4 on Mac OS Catalina 10.15.6.
I solved the problem by running Android Studio with bellow command on console.
$ open -a "Android Studio.app"
Simple steps you need to go through to make it work with npx
sudo npm uninstall -g react-native-cli
sudo npm i -g npx
npx react-native run-android
More detailed explanation why this is happenig
Issue was that Facebook is not using anymore react-native-cli as they are using npx.
As stated in Facebook page:
If you previously installed a global react-native-cli package, please remove it as it may cause unexpected issues.
So i had to run sudo npm uninstall -g react-native-cli to remove react-native-cli
They also say that npx is shipped with nodejs but that wasn't my case.
React Native has a built-in command line interface, which you can use to generate a new project. You can access it without installing anything globally using npx, which ships with Node.js.
So I had to install it using sudo npm i -g npx
After installing npx then just need to run npx react-native run-android.
Be aware of npx before react-native run-android
Now you don't have any command react-native now we only have 'npx' and react-native run-android is just a parameter for npx. For ex. to start metro we should run npx react-native start
I had the same issues, so I followed these steps:
Start by installing the latest version of Android Studio (Don't delete the old version, just copy paste that to another directory or in my case I just added the Android Studio 3.2.1 that I had to a folder called olderAndroidStudio, on mac).
Make sure you don't click on import settings from Existing.
Follow along the installation, and complete it.
Build and Run, app runs without any problems.
I additionally uninstalled react-native-cli using the method given in the accepted answer.
In my case, I just quit Android Studio and reopened, and the error was gone.
Maybe throw in a ./gradlew clean for goo measure.
I solved it by finding the command that was throwing error and ran it directly
node -e "console.log(require('react-native/cli').bin)"
which outputs a path, something like
$HOME/my-app/node_modules/#react-native-community/cli/build/bin.js
then I pasted that path in android/app/build.gradle
project.ext.react = [
entryFile: "index.js",
enableHermes: true, // clean and rebuild if changing
cliPath: "$HOME/my-app/node_modules/#react-native-community/cli/build/bin.js" // <--- add this
]
So I'm opening my the existing React Native project. This is the procedure on how I opened my existing React Native project. 1st step, type the location of my project which is in the "D:\rnprojects\firstproject\". 2nd step, "react-native-start". 3rd step, I opened another cmd then locate it again into my project directory then typed "npm start".
Why when I created this project I didn't get this error just when runnning/opening my existing project.
This the error that I got: (with versions)
There is only simple steps can solve your particular scenario issue quickly.
1) Install the React native cli in your project or globally.
npm install -g react-native-cli
OR
npm install react-native --save
then start your project by using this command
npm start
If any dependencies issue please follow the second solution
2) Please make sure you're installed all dependence
yarn install
OR
npm install
under your project directory
I'm pretty sure your issue will fix by using 1st solution Thanks.
it is simple:
1.npm install
2.react-native run-android
Here I guess you have the RN environment to run already on your side.
cd path_to_project
install packages(there are two following ways to install packages).
2.1 yarn install
2.2 npm install
react-native link(optional - you need to run this command if existing project use RN packages which need to link such as
react-native-vector-icons)
optional(if project use pods) cd ios pod install
react-native run-ios or react-native run-android according to the platform which you want to run on.
I don't think above is perfect instruction give you how to run the existing react-native project, But I am pleasure if give me some hints or help to you.
You can find official guide here
Sometimes npm's cache gets confused and need to reset it by using below command:
npm cache clean --force
Also try below command:
npm install --save-dev react-native-cli
Hope it will help you.
I am Android Developer, I am new to react native development. For this, I followed bellow React Native Document
https://facebook.github.io/react-native/docs/getting-started.html
I did the following steps
1, I have installed node
2, I Have already installed JDK
3, I have installed Android studio
4, set the ANDROID_HOME path in environment variables
And in command prompt, I did run the following commands
npm install -g react-native-cli
Then create a new application, for this
react-native init AwesomeProject
Then successfully created the application, then go to that folder and run the application.
cd AwesomeProject
react-native run-android
Then getting the following error
And this is the node js error
So please help me, Thanks In Advance.
Try to follow the workarounds here : https://github.com/facebook/react-native/issues/4968.
Kill the bundler process, delete your modules folder, run npm install, rm -rf $TMPDIR/metro-cache-*, also rebuild your android project.
If this doesn't work, you can as well try to create your app using create-react-app toolchain which should be working fine : https://github.com/facebook/create-react-app .
This is a bug within Windows environment for React Native 0.56 you may need to upgrade/downgrade your React Native version. I encountered it, made even worse when I tried to use Typescript.
What I would is run a new project using the latest version 0.57 and just build, if it doesn't build straight away - then use 0.55 until the issue is resolved.
Try this solution, it was worked for me.
Steps to create New React Native project:
react-native init projectName (ProjectName: eg.HelloWorld)
cd HelloWorld
npm start
Open another node command prompt and goto the project path and then run your project with below given command.
react-native run-android
I think you missed 3rd step i.e to start npm.
And if you are again getting same error, follow these steps:
rm -rf node_modules && npm install
rm -rf /tmp/metro-bundler-cache-*
rm -rf /tmp/haste-map-react-native-packager-*
react-native run-android
I'm new to reactnative. I have followed steps to install reactnative properly but, while creating a new project, I'm getting an error. I'm using Windows 7 64 bit with i3 processor.
c:\ReactNativeProjects>react-native init AwesomeProject
Command npm install --save --save-exact react-native failed.
My Folder contains only one file
Since you are starting to use React Native, consider using Expo, I've used it and it makes developing, debugging, testing and deploying to the apple store and google play easier.
According to the official docs:
Expo is the easiest way to start building a new React Native
application. It allows you to start a project without installing or
configuring any tools to build native code - no Xcode or Android
Studio installation required (see Caveats).
Assuming that you have Node installed, you can use npm to install the
Expo CLI command line utility:
npm install -g expo-cli
Then run the following commands to create a
new React Native project called "AwesomeProject":
expo init AwesomeProject
cd AwesomeProject
npm start
This will start a development server for
you.
I've answered a question in SO for the steps and what happens when you build your .apk and .ipa files using Expo, have a look at that as well.
These are my steps to get rid of this error:
Please upgrade your npm
npm install -g npm#latest
Run npm cache clean command in Command prompt ( With some element of doubt for cache presence)
3.Ran react-native init in command prompt as Administrator (on Windows OS), hoping works well with sudo react-native init on Mac OS
If still problem persist make sure that you have followed each and every step mentioned in Documentation i.e. installed JDK, PYTHON, NODE.
Refer to this link For windows