First Expo project throwing error after npm start - react-native

I followed instructions to install Expo on my Windows 10 machine. I'm running node version 10.14.0 on my machine.
After I issued expo init command and created the first project, running npm start shows a message that reads:
This command requires Expo CLI. Do you want to install it globally
[Y/n]?
Strange thing is that I'd already installed the latest version of expo-cli globally. Running expo-cli --version in the project folder gives me the version of expo-cli which is 2.5.0.
From here, it gets worse. No matter what I choose, I get the following error:
Any idea how to fix this issue?

I had the same issue, first run:
npm i expo-cli
then:
npm start
Worked for me

first type:
npm i expo-cli
then type :
expo start

In my case I had the same error, so I went to the expo documentation (https://docs.expo.io/versions/latest/get-started/installation/), to see the error.
First I logged into the expo:
expo login --username -u [username] --password -p [password]
and then I checked if I was logged in:
expo whoami
Second I followed this help that I found on stackOverflow:
How to resolve the error on 'react-native start'
Hope this helps.

Related

RN Expo issue - Something when wrong installing JavaScript dependencies. Check your npm logs. Continuing to initialize the app

I am using react native and Expo. I am unable to build new app because after I use expo init appName it shows the following error.
Heres the full message:
📦 Using npm to install packages. You can pass --yarn to use Yarn instead.
√ Downloaded and extracted project files.
× Something when wrong installing JavaScript dependencies. Check your npm logs. Continuing to initialize the app.
✅ Your project is ready!
To run your project, navigate to the directory and run one of the following npm commands.
- cd Scanner
- npm start # you can open iOS, Android, or web from here, or run them directly with the commands below.
- npm run android
- npm run ios # requires an iOS device or macOS for access to an iOS simulator
- npm run web
I tried multiple times to create a blank project, also tried npm install to install failed/not downloaded libraries and continue after failure but it showed another error:
npm ERR! code Z_BUF_ERROR
npm ERR! errno -5
npm ERR! zlib: unexpected end of file
also tried npm cache verify that showed cache is ok Content verified: 3562 (252580364 bytes).
So, How can I solve this issue?
Problems related to npm installation are very common If you do any mistake in early installation, but is avoided. Learn more about npm tree.
Steps worked for me are :
npm cache clean --force
npm cache verify
npm -g uninstall expo-cli --save
npm install expo-cli --global
expo init app-name
cd app-name
npm start
Always run as administrator if working on Windows and in root directory.
The solutions above didn't work for me but if you use 'npm install' in the directory of the app you get a clue that you shuold try 'npm install --force'
err message
You should have all these files folders and files at the start of the project otherwise not all the dependencies have been installed which is why we were getting the problem.folder structure
After you have added --force to npm install you have all the dependencies installed. Now you can run the app with npm start.
Unfortunately, all the solutions described above didn't work on my machine...
Here is my latest solution for this problem...
This worked 100% on my machine...
Use npm i -g expo-cli
This will automatically add the required packages and also remove the unnecessary ones.
Yes, surely, you don't need to uninstall and re-install it again.
Just follow my steps.
And, you can create your expo project using expo init.
I hope my solution will help you out from this annoying problem....
I just did npm install and it worked for me, but I had do that every time I create a new expo project.
I also encountered this problem, and finally found that it was the problem of react native cli,I installed the latest version of react native cli,Expo is back to normal
This Error is regarding to the git account. expos need a git account to setup react native project
If you are using windows you need to install git in your local PC
after that open your Terminal and type this command
git config --global user.name "your_username"
git config --global user.email "your_email_address#example.com"
after that clone any github project to your local computer. it will ask to login to Github
after all these steps try expo init <projectname>
The simple way to settle that error is by using "expo-cli init app-name" instead of "expo init app-name".
I tried and worked perfectly for me. Hope it will help you guys.
i have faced a similar problem and running yarn set version 1.22.1 fix it
Run the Command Prompt as an administrator. And run the following command:
npx create-expo-app AwesomeProject

Expo fails to build, Request failed with status code 400

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

Can't run "npm install expo-cli --global"

I am a newbie in all this stuff. Hope for your understanding.
Let me clarify the issue:
I am trying to start react native app through expo cli. So tried to start npm install expo-cli --global to install npm globally. I got these errors:
Screen_1
Screen_2
It also says that I lack permissions to access it. How can I allow permissions?
Even when I try to start it locally I got the same issue. Your help is appreciated.
although this solution is not the best and the safest solution exists, this worked for me and that make sense because all the problem we had with the errors is the permission problems. so you can use this command and ignore those permission problems :
sudo npm install expo-cli -g --unsafe-perm
I was having the same problem with npm install -g expo-cli, having "MODULE_NOT_FOUND",
I installed yarm with brew, just in case you do not already have it:
brew install yarn
and then use:
yarn global add expo-cli
to create a project you can:
expo init nameOfTheNewProject
and choose a template in the console.
Finally run the project with
yarn start
Let me know if it works for you!
You did not mention which os. This answer working for any operating system (ubuntu in my case)
I'm also getting permission errors when running
sudo npm install --global expo-cli
Which I don't really how this can happen - as this also happens for the superuser!
For me it works when I install the client locally into the project
cd <new-project-dir>
npm init # init npm project
npm install expo-cli
Now you can use the client in this project like this:
npx expo-cli # e.g. npx expo-cli init <project-name>
npm cache clean --force
This will solve the issue
Try using npm install -g expo-cli#3.5.0 this worked for me, it may work for you.
You can try this command:
npm install -g expo-cli
or,
yarn global add expo-cli
You have to run the command as administrator from a command prompt on windows and not bash. Had me stumpt for bloody ages!
You need administrator privilege. So when you open command line interface, just right click and run as administrator
This will solve the problem
I guess, this issue comes from permission or node version , if you get this error when the node module is being refreshed ---> This is definitely a permission issue. Disable your Antiviruses or change permission manually check this as well.
First run npm cache verify, then run sudo npm install --global expo-cli.
Did work for me indeed after trying so much.
Follow the steps
First, run npm cache verify.
Open Windows PowerShell as administrator and run npm install expo-cli
--global --no-optional command.
npm cache clean --force then npm install --unsafe-perm -g expo-cli
It is likely you do not have the permissions to access this file as the current user.
The best way to solve this problem is to reinstall npm with a node version manager.And you don't need to remove your current version.
About node version manager
use nvm or n with OSX or Linux
use nodist or nvm-windows with windows
Upgrade Node version to +10
Then do
sudo npm install expo-cli -g
This worked for me. I hope this would solve your problem!
sudo npm install expo-cli -g --unsafe-perm=true --allow-root
If any of the solutions above result in success, please follow the steps below:
Uninstall Node.js
Restart your pc/mac
Download latest version of the Node.js (https://nodejs.org/en/)
Open cmd as admin mode or use "sudo" before the command line on Mac.
npm install expo-cli --global
I hope it can help
In my case, I deleted two files then everything worked. The two files are in this path: C:\Users\{Username}\AppData\Roaming\npm under the names 'expo.ps1' and 'expo-cli.ps1'
Then run:
npm i -g expo-cli
re-install node.js, it works for me
First update Node.js to the latest stable version and then again try to install expo ad clean before expo folders that are being created in below location
C:\Users\{{computer_username}}\AppData\Roaming\npm
If it's throwing error in visual studio code, try from cmd, was facing same error but solved through this way
npm install -g expo-cli
try going into windows resource monitor and terminating adb.exe (android resource bridge). This worked for me after searching for solutions for days. I tried this after verifying cache, clearing cache, you name it.
As a Debian 10 buster user I got the same permission error while using this command: sudo npm install expo-cli --global.
The problem was solved by installing expo-cli with yarn package manager and the command below: sudo yarn global add expo-cli.
For Windows User :-
Open your Powershell and type:
npm install expo-cli --global
This worked for me after trying and reasearching for hours.
Note:Don't Use cmd or any other terminal and also don't type npm install expo-cli -g as it is written in the react native docs. It would always show up an npm error.
For windows
Follow these steps carefully
open the command prompt and run it as administrator.
recommended npm uninstall --global expo-cli.
run the command npm cache clean --force.
run the command npm cache verify .
now run the command npm install --global expo-cli
dont run command like npm i -g expo-cli or npm install -g expo-cli.
7.Make sure you run the command mentioned in the 4th step ONLY.
thankyou.
I had this problem in Windows 10, to be able to install the latest version (I had no choice since it broke the current one). I had to install the latest version of Python (3.8.0) and then run npm install --global --production windows-build-tools as an administrator, then I was able to run again: npm install expo-cli --global to install the version 3.8.0 of the expo-cli
Here is the solution and 100% working. I am working with Windows and not sure abut Linux.
Open cmd and
Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
then press yes
Now run the command to start your project
npm install -g expo-cli
I had previously removed Expo from my Windows machine and encountered this error whilst trying to reinstall. Reading the error message solved the problem.
npm i expo-cli -g --legacy-peer-deps
Using this command in 'PowerShell' installed expo successfully.
If anyone else has this problem here is my fix, go to Finder, in the input field (search box) type in /usr/local/lib then press CMD + SHIFT + G press the OK button or whatever pops up, then CMD + SHIFT + . and delete the NVM file i deleted the expo folder too. Then go to this link https://changelog.com/posts/install-node-js-with-homebrew-on-os-x
follow the instructions and install brew, node, etc. Last step go to your terminal and type sudo npm install expo-cli --global
First: I upgraded my mac version 10.13 to 10.15
Then I downloaded homebrew, Watchman, Git and Node.js
Finally I ran this command sudo npm install --global expo-cli --legacy-peer-deps
If you have any further questions check the docs out: https://docs.expo.dev/get-started/installation/
Sometime, I use npm not work.
I try a lots times run with npm but fail for expo cli.
Please try yarn global add expo-cli
It wills save your time ^^.
I was trying to install expo-cli with my company npm registry configured.
I've created 2 differents profiles using npmrc and using the profile with https://registry.npmjs.org/ solved the issue.

Cannot start ReactNativeProject

I followed the tutorial in the link here https://facebook.github.io/react-native/docs/getting-started.html#content . As it turns out, npm 5 is not supported yet. I tried installing npm 4 but, it is not working either. Stuck in the first page of the tutorial, when I run npm start, I am getting a bunch of errors too. Literally stuck, nowhere else to turn. Before voting down the question, kindly note that I am a mobile developer working with andorid and Ios having no previous knowledge about web technologies. Thanks
These are the steps I followed
npm install -g create-react-native-app
It was successfull, then,
create-react-native-app AwesomeProject
for this line, I got the following error
*******************************************************************************
ERROR: npm 5 is not supported yet
*******************************************************************************
It looks like you're using npm 5 which was recently released.
Create React Native App doesn't work with npm 5 yet, unfortunately. We
recommend using npm 4 or yarn until some bugs are resolved.
You can follow the known issues with npm 5 at:
https://github.com/npm/npm/issues/16991
*******************************************************************************
Then I ran the command
cd AwesomeProject
Afterwards I ran
npm start
for which I got the error
npm ERR! missing script: start
npm ERR! A complete log of this run can be found in:
npm ERR! /home/jayakrishnan/.npm/_logs/2017-07-25T08_13_06_277Z-debug.log
I tried using Yarn But didnt work
npm i -g npm#4.6.1 - then install create-react-native-app again and create a project.
Solution with Yarn:
First install Yarn
yarn global add create-react-native-app
cd AwesomeProject
yarn start
npm install -g npm#4 Use this to downgrade, Also use sudo with the commands, sometime it does give permission to write error and skips the installation
Try putting more information about the error so we can help, or steps to reproduce it.
One thing to try is to instead of using npm, use yarn. Install yarn with brew install yarn if you are on mac and do the same steps in the getting-started guide, except for use yarn run ios to start app in ios simulator.
I just tried with a fresh setup that this is working perfectly fine.
Reference to yarn https://yarnpkg.com/en/

'react-native' is not recognized as an internal or external command, operable program or batch file

I recently started with react-native. I install it using the tutorial on the Facebook site and everything works well for a day or two until this message comes up:
'react-native' is not recognized as an internal or external command,
operable program or batch file.
Nothing works except uninstalling everything and starting all over again. The environments are ok and work (npm, choco, etc.). I have also tried removing and adding react-native to environment variables, restarting, and running cmd in administrator mode, but nothing so far. I should add that I use windows 10 64-bit.
I had the same issue and tried the following but didnt work
Adding npm path to my Environment variables; both system and user
Re install npm and react-native-cli
Both didn't work for me, im using Windows 10;
Solution that worked for me is to install react-native-cli globally
You can install it globally by using the below command:
npm install -g react-native-cli
You can simply use npx react-native <command> it will work
npm install -g react-native-cli
But dont forget to restart command promprt
Your system or user environment PATH variable was edited, you can uninstall NodeJs and install it again or add the below path to the end of PATH variable into user variables the restart the Windows :
C:\Users\[USER-NAME]\AppData\Roaming\npm
this should work.
You need to setup the npm path in your environment variables. Please look at the images down below
Then follow the command : for installing -g ( global ) for cli in your system
npm install -g react-native-cli
I get the same error right off the bat on Windows 10 running in cmd window in adminstrator mode, however there is also a bash shell version of react-native that worked for me in a git bash window.
cmd:----------------------------------------------
C:\Users\David\Documents\react>where react-native
C:\Users\David\AppData\Roaming\npm\react-native
C:\Users\David\AppData\Roaming\npm\react-native.cmd
C:\Users\David\Documents\react>react-native init AwesomeProject
'react-native' is not recognized as an internal or external command,
operable program or batch file.
git bash:----------------------------------------
David#CYBER-PC ~/Documents/react
$ react-native init AwesomeProject
This will walk you through creating a new React Native project in c:\Users\David\Documents\react\AwesomeProject
Installing react-native package from npm...
Setting up new React Native app in c:\Users\David\Documents\react\AwesomeProject
AwesomeProject#0.0.1 c:\Users\David\Documents\react\AwesomeProject`-- react#15.3.1
To run your app on iOS:
cd c:\Users\David\Documents\react\AwesomeProject
react-native run-ios
- or -
Open c:\Users\David\Documents\react\AwesomeProject\ios\AwesomeProject.xcodeproj in Xcode
Hit the Run button
To run your app on Android:
Have an Android emulator running (quickest way to get started), or a device connected
cd c:\Users\David\Documents\react\AwesomeProject
react-native run-android
npm install -g react-native-cli
I had to add the %APPDATA%\npm folder to my PATH on Windows 10. Global modules are installed there.
If uninstalling and installing again the npm did not work on you, try adding %APPDATA%\npm to path (Environment variables) then quick reboot/restart. System Reboot should really be part of the process. This worked on my end.
Install :
npm install -g react-native-cli
Uninstall :
npm uninstall -g react-native-cli
If you are following the getting started guide for Windows/Android, they recommend installing nodejs via Chocolatey. But Chocolatey likes to have administrator rights when it installs things. If you're just a regular user, this seems to interfere with how npm installs react-native-cli. In my case, the react-native command was only recognized when I launched a command prompt as admin.
What I did to fix:
launched command prompt as admin
uninstalled react-native-cli globally: npm uninstall -g react-native-cli
uninstalled nodejs via Chocolatey: choco uninstall nodejs
Now, as a regular user without admin rights:
installed nodejs via the nodejs website (not Chocolatey)
installed react-native-cli globally: npm install -g react-native-cli
I uninstalled node.js and then reinstalled it, and it worked like a charm
just uninstall the node.js and reinstall it..
then install the cli package typing command
npm install -g react-native-cli..
now you are ready to make your project.
To make project open a folder from your drive wherever your folder is located.
Then type command
react-native init albums
it will create a project for you inside your directory.
None of the above mentioned solutions worked for me. What did work was to remove nodejs, and reinstall it via Chocolatey with the following command:
PS > choco install -y nodejs.install python2 jdk8
> npm install -g react-native-cli
C:\Users\user\AppData\Roaming\npm\react-native ->
C:\Users\user\AppData\Roaming\npm\node_modules\react-native-cli\index.js
+ react-native-cli#2.0.1
added 41 packages from 15 contributors in 4.528s
I had this problem also becuase I restored my files from a previous OS installation. My problem was a wrong prefix in my C:\Users\user_name\.npmrc file.
Run npm config list and make sure that all your npm config variables are leading to the correct file paths. Delete the .npmrc file if you want have it to go back to the defaults. That's what I did and react-native command is working for me again.
I hope this helps.
i have no clear idea but below steps worked for me.
delete Node Modules
Uninstall react-native cli. This is Recommended in the react-native Documentation
"If you previously installed a global react-native-cli package, please remove it as it may cause unexpected issues."
npm uninstall -g react-native-cli
clean gradlew. in your project folder, go to the android folder by typing cd android
and run gradlew clean
move back to your project folder cd .., then run
npx react-native run-android
these steps worked for me. took some time when running first time.
use node.js stable version or recommended version.
On window 10, nodejs>11 global node libraries seems to be installed in C:\Users\your_user_name.npm-global. So you need to set the variable to point to that path
I had problems because of this strange mistake.
I checked to see if it was globally loaded again
I didn't delete all packages
I even deleted C:\Users[USER-NAME]\AppData\Roaming\ npm manually, but there was no solution.
The only thing that is the solution is to use the current version of node.js.
uninstall nodejs completely(restart your pc) and reinstall it using chocolatey and follow other commands from https://facebook.github.io/react-native/docs/getting-started.
worked perfectly fine for me!
Even if you have installed react-native globally and still get the same try adding path of npm module (C:\Users\your user name\AppData\Roaming\npm) to system variables instead of user variables.
I know it's too late, anyway
Make sure you've added the path of the NPM in system variable rather than user variable in the System Environment Variables.
PATH : C:\Users\user_name\AppData\Roaming\npm
Open a the command prompt and type: npm config list:
Get the path underlined in red and add it your system path (change two back slashes into one), for example: C:\Users\YOURNAME\AppData\Roaming\npm.
This solved the issue for me
I just wrote "react-native -v" to console to check have I still react-native and then just I wrote "react-native run-android" again and this time it worked. Yes just that. React native is terrible technology.
Looks like I have uninstalled react native cli by mistake, I tried all answers mentioned above, but the below command worked for me.
npx react-native run-android.
Solution
I was facing 'react-native' is not recognized as an internal or external command,operable program or batch file error when I was running react-native start in VsCode.
I Solved it by running npm install -g react-native-cli in PowerShell
Steps to follow
run PowerShell as admin (important step)
run running npm install -g react-native-cli in PowerShell
close VsCode and rerun it
that's all!
I solve this problem by running
npm install -g react-native-cli
then another error appears
Command run-android unrecognized.
I fixed this error by
npm install
Use npx before your command
npx react-native
Not just
react-native
if you faced the same issue as me just type :
npm i react-native
then try to create a new project as its recommended by the react native doc by typing :
npx react-native init yourProjectName
this should resolve your problem
hope this was helpful