I'm new to react native and I was following their getting started guide but when I typed npm start to run my Project, it says Starting packager and no progress at all. Any help would be appreciated. Thanks!
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I installed React Native following the requirements in the documentation (https://reactnative.dev/docs/environment-setup) , i got all the simulators working but i have to manually open them everytime i open the project.
If i press m after npm start the following error shows "warn No apps connected. Sending "devMenu" to all React Native apps failed."
(Btw this is my first time using React-Native so sorry if this is a rookie mistake)
Does anyone know any solution ?
I am new to react-native or you can say new to React and I am working on react-native navigation I have installed all the required libraries as instructed in https://reactnavigation.org/docs/getting-started but when I am running my code it is giving an error as '#react-navigation/native could not be found within the project or in this directories.' What should I do is there any way to get started with my code? Help me
If you have installed your app following the react native cli guide you might want to try running
gradle clean
in your android folder und then try to run your app in the emulator again.
On my first steps with react native I stumpled upon the same issue. :-)
I am developing mobile app using React-native-cli.
But I have got one difficult problem to solve.
I don't know why this issue is appeared.
I want RN experts to help me to solve this problem.
This issue is following.
I tried to run my app using following command.
react-native run-android -- --reset-cache
When my internet speed is very fast, my app is running well, but when internet speed is some slowly, it is not running.
My project is based on RN 0.59.
issue:
error: bundling failed: Error: Unable to resolve module scheduler/tracing from \working\temp\node_modules\react-native\Libraries\Renderer\oss\ReactNativeRenderer-dev.js: Module scheduler/tracing does not exist in the Haste module map
please help me!!! :)enter image description here
I have installed the complete packages which are required for react native project. But after running the project i am getting this error i am not sure why.
I have also searched this issue on the internet but no luck.
Thanks
Amit
Env:
Mac OS X
nodejs 8.9.1
Xcode installed
using boilerplate generated by https://github.com/react-community/create-react-native-app
Symptom:
React Native stuck on Loading dependency graph, done and when go to localhost:8081, I see React Native packager is running.
Also the command line after I did npm start what I got is Loading dependency graph, done. and just stay there, even after I waited for almost 5min.
Actually I found the answer myself.
There is actually nothing wrong. I forgot to start the React Native in the simulator! lol Silly right?
So basically let say if you want to start the iOS simulator in a MacOS, you can just do react-native run-ios --simulator="iPhone 5s" in your project root. Then boom! your project started!
Note that React Native can't really run in the browser, it has to be running inside a phone simulator either iOS or Android.
See official doc for more https://facebook.github.io/react-native/docs/running-on-simulator-ios.html
Have fun!