first time using react native. When i run npm start and open the localhost, it says "An unexpected error has ocurred". If i scan the QR code in the Expo app, it says "Something went wrong. Network responde timed out".
When i open the console this appears
I created the app as:
npm install -g expo-cli
expo init MyApp
Selected the typescript template
And then at the MyApp folder npm start
Its probably because of new version of expo-cli#5.4.10
Uninstall new version and install 5.4.7
For npm:
npm -g uninstall expo-cli
npm -g install expo-cli#5.4.7
For yarn:
yarn global remove expo-cli
yarn global add expo-cli#5.4.7
Related
metro bundler
I'm trying to run an app published by other programmer but it doesn't run metro bundler on google chrome when I type npm start on terminal.
On the other hand, I created a project and run it and it works
my project
Open new terminal and run below command, It will bring up expo dev client.
expo start --dev-client
Sometimes it might throw an error as below.
Missing package "metro/src/lib/attachWebsocketServer" in the project. This usually means react-native is not installed. Please verify that dependencies in package.json include "react-native" and run yarn or npm install.
To fixing this issue, run the command
npm install -g expo-cli
npm install expo-dev-client
expo start --dev-client
You need to install the dependencies of the other developer's project by running 'npm install' before starting metro bundler.
I'm trying to build a project in expo react native project.
My expo version is 3.2.2, sdkVersion is 35.
When I ran in cmd (on Windows 10)
set EXPO_DEBUG=true
expo build:android -c
I got:
Request failed with status code 400
Error: Request failed with status code 400
at createError (C:\Users\Jonny\AppData\Roaming\npm\node_modules\expo-cli\node_modules\axios\lib\core\createError.js:16:15)
at settle (C:\Users\Jonny\AppData\Roaming\npm\node_modules\expo-cli\node_modules\axios\lib\core\settle.js:17:12)
at IncomingMessage.handleStreamEnd (C:\Users\Jonny\AppData\Roaming\npm\node_modules\expo-cli\node_modules\axios\lib\adapters\http.js:237:11)
at IncomingMessage.emit (events.js:203:15)
at endReadableNT (_stream_readable.js:1145:12)
at process._tickCallback (internal/process/next_tick.js:63:19)
I'm tried to update expo version, sdkVersion, the version in react, check for internet connection.
Expo login and logout works fine. I don't have any proxy in my network.
I don't have any clues for what search or how to fix this problem.
Seems was a error in expo-cli version 3.2.2.
The update 3.2.3 fixed for me.
I have fixed the issue by using this command
Move to your root folder then type this command in your terminal
npm install -g expo-cli
I had two versions of expo-cli installed (one via yarn global install expo-cli and one as a dev dependency in project yarn add -D expo-cli). This started working for me after I removed the global expo-cli:
yarn global remove expo-cli
and used the local version in my project instead:
yarn run expo-cli start
Run those following command, then we are good to go.
$ yarn global remove expo-cli && yarn global add expo-cli
$ rm -rf node_modules/ yarn.lock && yarn install
$ yarn run start
I'm trying to provide windows support for my react native app but somehow it's not able to generate windows folder.
the first error is...
rnpm-plugin-windows#0.2.11 requires a peer of react-native#>=0.31.0 but none is installed. You must install peer dependencies yourself.
Above error is coming when I entered the command npm install --save-dev rnpm-plugin-windows
Some time windows plugin is installed properly but below error will coming
"Windows" command not found when I entered react-native windows
You First React-native-cli install
npm install -g react-native-cli
npm install --save-dev rnpm-plugin-windows
react-native init yourproject
Usage
react-native windows [name] [--namespace <namespace>] [--windowsVersion <version>]
I'm generating a new project using React-Native in Command Prompt but I get an error when I use the following command:
react-native init Style
This is the result I get:
√ Downloading template
× Copying template
error Error: Cannot find module 'C:\Users\User\AppData\Local\Temp\rncli-init-template-srEvW0\node_modules\react-native\template.config'
error EBUSY: resource busy or locked, rmdir 'D:\FUSI\React Native\Style'. Run CLI with --verbose flag for more details.
Error: EBUSY: resource busy or locked, rmdir 'D:\FUSI\React Native\Style'
at Object.rmdirSync (fs.js:684:3)
at rmdirSync (D:\FUSI\React Native\node_modules\fs-extra\lib\remove\rimraf.js:276:13)
at Object.rimrafSync [as removeSync] (D:\FUSI\React Native\node_modules\fs-extra\lib\remove\rimraf.js:252:7)
at Object.initialize [as func] (D:\FUSI\React Native\node_modules\react-native\node_modules#react-native-community\cli\build\commands\init\init.js:295:26)
at process._tickCallback (internal/process/next_tick.js:68:7)
How can I fix this error?
Mustafa AK had it right. What worked for me is adding the --npm flag at the end of the command.
I followed the tutorial exactly how it was laid out on the React website and was running into the same error. For whatever reason, if you have yarn and npm installed the command to create a new project will not work. So you have to add the --npm flag to get it to only use npm and this will work.
npx react-native init AwesomeProject --npm
This Same error comes with me. But I solved by following ways...
First, uninstall the node from your system and download the latest version of node and install it.
2.after installation of the latest version of node you need to write the command in your command prompt
npm install -g react-native-cli
Now go to your project directory
cd your-react-native-project directory
now create your react-native project
react-native init your-project-name.
https://stackoverflow.com/a/71725307/16114216
Be sure uninstall global react-native/cli as described react-native tutorials
Try to use --npm end of init command if you had yarn and npm both.
npx react-native init MyApp --template react-native-template-typescript --npm
Note: If you have both yarn and npm installed on your machine, React Native CLI will always try to use yarn, so even if you use npx utility, only react-native executable will be installed using npm and the rest of the work will be delegated to yarn. You can force usage of npm adding --npm flag to the command.
I am very new to React-native and I have a sample project when I tried running the command react-native run-android. I got an error command not found.
in the current directory do
react-native -v
you will get the following
react-native -v
react-native-cli: version
react-native: version
if it shows command not found the n you have not installed react native in the directory. Do a npm init in new folder and try installing a new react native project there
by doing npm install -g react-native-cli
Follow the steps to add path variable react-native.
You're good to go.
Have you run 'npm install' (without parameters) in the project directory? That'll install the dependencies for your project.
Details here: https://docs.npmjs.com/cli/v6/commands/npm-install
1.Try to install globally npm install -g react-native-cli 2.add path of npm module (C:\Users\your user name\AppData\Roaming\npm) to system variables instead of user variables