I've just updated both watchman, homebrew and react-native-cli
The result is that all my new as well as old react-native applicationsare giving the same error.
It is a TransformError in index.ios.js
this is what i got in the simulator
I looked into this question:
[TransformError when running React Native Getting Started project (iOS)]
(TransformError when running React Native Getting Started project (iOS))
But, the answer did not worked for me.
i did :
rm -rf node_modules
npm cache clean
npm i
npm start
and it did not work.
Does any one know what is happening?
I ran into this issue as well. It appears to be a missing babel plugin. Run npm install babel-plugin-node-env-inline to fix. I also had to install babel-plugin-dunderscore-dev-inline.
Related
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
I'm using expo to build an app. I'm new to React-Native and expo so if you could help me, I'd be really appreciated.
I get a couple of warnings that says:
Some of your project's dependencies are not compatible with currently installed expo package version
- expo-constants - expected version range: ...
- expo-permissions - expected version range: ...
- react-native-gesture-handler - expected version range: ...
Your project may not work correctly until you install the correct versions of the packages.
I was facing another error:
"TypeError: TypeError: undefined is not an object (evaluating '_styles.default.list')".
So I'm trying to install the latest version.
When I try to install expo install expo-permissions and expo install react-native-gesture-handler, I get errors.
Both errors say
Cannot find module 'expo/bundledNativeModules.json'
Require stack:
- /Users/address/src/react-native-udacicards/noop.js
I tried to remove node_modules and package-lock.json then npm install.
rollback with npm install -g expo-cli#2.4.3
I don't know if this solution will work for all the situations, but this is what fixed the issue it for me:
clean the npm cache using the following command : npm cache clean --force
re-install the dependencies : npm install
expo install
I hope it helps
1.on your package.json change expo version to
"expo": "~43.0.2", (or lower)
and your react-native-gesture-handler to
"react-native-gesture-handler": "~1.10.2",
(for expo 43.0.2)
Then, on your terminal (in your project), run
npm cache clean --force
npm install
expo doctor --fix-dependencies
I also faced this issue but Enableing USB tethering in phone, and clearing all data in expo app resolved this issue.
C:\ProjectName> react-native install
Scanning folders for symlinks in C:\ProjectName\node_modules (794ms)
error: missing required argument `packageName'
I ran the command above and recieve the error shortly afterwards. I am not very sure what the problem is I am new to react-native and was just trying to ran an already developed project. I hope someone can help shed some light regarding this.
You are missing the package manager.
If you are using yarn:
yarn add react-native
or npm:
npm install react-native
You can read more here:
https://blog.risingstack.com/yarn-vs-npm-node-js-package-managers/
EDIT: Also, don't forget to install react-native-cli
I just updated my react native project to version 0.45
and when using this command : react-native run-ios on the root of this project
I am getting this error :
Cannot find entry file index.ios.js in any of the roots ....
and i can see that the server is trying to look for JS files in
Looking for JS files in
/Users/someUser/Code/ReactTest/node_modules/react-native/packager
when using this command : npm run start -- --root .
i can see that the server is looking for js file in the correct location
Looking for JS files in
/Users/someUser/Code/ReactTest
and every thing is working from here
why the react-native run-ios is try to look in the wrong location ?
I ran into this issue today. As noted here it has been corrected as of version 0.45.1, but this turned out to be a red herring for me.
The most telling problem in my case was that index.ios.js didn't actually exist anywhere in my project, only in some places in node_modules. It turns out that, because I'd initialised the project with the create-react-native-app command, I had to:
npm run eject
You can read more about the eject command here.
If you still have issues, try the below.
Check your dependency versions. Here are my RN packages:
"react": "16.0.0-alpha.12"
"react-test-renderer": "16.0.0-alpha.12"
"react-native": "^0.45.1"
Update your dependency managers. These worked for me:
$ yarn --version
0.18.1
$ npm --version
4.6.1
Clean your cache(s). WARNING - CONTAINS rm -rf, COPY WITH CARE.
watchman watch-del-all
rm -rf ./node_modules
yarn cache clean
rm -rf $TMPDIR/react-*
yarn install
npm start -- --reset-cache
After that last npm start, hit CTRL+C and ensure there are no dormant npm processes running in the background. Then, try react-native run-ios again.
The react-native launched new release 0.45 a few days back. So, the commands to create a react-native application and running locally have many differences.
npm install -g create-react-native-app
Then run the following commands to create a new React Native project called "AwesomeProject":
the new way of creating a react-native application as follows
create-react-native-app AwesomeProject
cd AwesomeProject
npm start
Please follow the official documentation for creating an application and running the application on locally. hope the below link will help you.
https://facebook.github.io/react-native/docs/getting-started.html
Once you've set these up, you can launch your app on an Android Virtual Device by running npm run android, or on the iOS Simulator by running npm run ios(macOS only).
Enjoy, Happy coding :)
Recently updated to React 0.19.0 and have started to get this error.
I've tried cleaning out the gradle folders but I'm still getting the error.
I've also tried restarting the package manager.
I fixed this by
rm -rf node_modules
Remove react from package.json, since react-native now includes it.
npm install