I have downloaded zip fil from github, did npm install, and run react-native start android.
I receiver the following:
Now when i open the browser it say
My android emulator is opened but not connected. No error messages.
Any help how to run the project. The project is in github:
https://github.com/itzpradip/react-navigation-v5-mix.
Thanks
sal
I had the very same issue. Adding this to the android manifest did the trick:
<application
...
android:usesCleartextTraffic="true">
...
</application>
references:
https://github.com/facebook/react-native/issues/15388
Android 8: Cleartext HTTP traffic not permitted
You need to install the app on your emulator by running
npm run android
or
npx react-native run android
then start your mentor server by
npm start
if you don't install this app on your device , you must use
react-native run android
to install app , then go for next try you can use start and open app manually
Related
I'm new with app developing. I'm using react-native 0.63.2 and i've created my project with Expo.
There are no ios and android folders
So, should we have to have these folders to run pod install and correctly link the React Native app to the futur iOS app or this is not necessary anymore?
Because with the command npx create-react-native-app to create a project, they do exist.
Thanks.
You don't need to install Pod. Just run expo start or expo build:ios
No you don't need pod install here.. you can build your application without using xcode or android studio... expo handles it all :)
I have initiated successfully a new react-native project. Then, every time I try to run my newly built project using the command react-native run-android, it gets stucks on info Starting JS server....
Here is the output:
$ react-native run-android
info Running jetifier to migrate libraries to AndroidX".
You can disable it using "--no-jetifier" flag.
Jetifier found 855 file(s) to forward-jetify. Using 4 workers...
info Starting JS server..."
I tried restarting the laptop and switching emulators. I don't know what else to do anymore.
How do I solve the problem?
Kill the automatically popped up metro bundler command prompt
Kill the command terminal which is running react-native run-android
Now Run react-native start This will start your js server
In new command prompt window run react-native run-android
The app came up in 5 mins in an emulator.
Linux:
Go to the terminal and type:
react-native start
and then in OTHER terminal, inside your project folder:
yarn android
or
npm run android
Temporary fix:
REACT_TERMINAL= react-native run-android
in my case with manjaro + xfce4:
REACT_TERMINAL=xfce4-terminal react-native run-android
or puts in your .bashrc:
export REACT_TERMINAL=xfce4-terminal
font: https://github.com/facebook/react-native/issues/26097
I had the same problem. I started a project yesterday and it worked, started a new one today and it didn't work. The problem seems to be "#react-native-community/cli-platform-android". The version that showed up today is 2.8.2 as opposed to 2.7.0 for yesterday's project.
I used:
npm install #react-native-community/cli-platform-android#2.7.0
This is not a optimal solution, but it will get you going.
I had the exact same frustrating issue for a very different reason than mentioned in other answers.
As explained in this SO answer Android adb binds to port 5037 and I installed some program which took this port so adb was hanging silently (why adb! .. say something!)
Commands to test if this your issue cause:
test any adb command and see if it hangs, eg:
adb devices
If it does, then check who is using the port:
sudo lsof -i :5037
In my case(Manjaro OS)
First:
npm start
Then in a separate terminal:
npm run android
The best solution that I constantly find myself using, is going to the application manager on android, then clearing the data of the app. Running the app afterwards goes smoothly without lagging.
Reinstalling android studio with a new emulator or changing the app name in app.json , build.gradle and android manifest.xml solved the issue.
I am trying to run react native code but when I use react-native run-android I get this error message. I am using android studio.
~/Downloads/BrainG-master$ sudo react-native run-android
Scanning folders for symlinks in /home/luke/Downloads/BrainG-
master/node_modules (10ms)
JS server already running.
Building and installing the app on the device (cd android && ./gradlew
installDebug)...
: No such file or directory
Could not install the app on the device, read the error above for
details.
Make sure you have an Android emulator running or a device connected
and have
set up your Android development environment:
Make sure
there is an android directory inside /Downloads/BrainG-master (I hope you're not running react-native run-android from within the android directory) and
your local.properties file in BrainG-master/android has the location of your android SDK specified in the following format: sdk.dir=/Users/username/pathToYourAndroidSdk.
If there is no local.properties file, open the project in Android Studio and it will create that for you.
If you're on Linux, you can also configure the android home environment thus:
Add the following lines to your $HOME/.bash_profile config file:
export ANDROID_HOME=$HOME/Android/Sdk
export PATH=$PATH:$ANDROID_HOME/tools
export PATH=$PATH:$ANDROID_HOME/platform-tools
.bash_profile is specific to bash. If you're using another shell, you will need to edit the appropriate shell-specific config file.
Type source $HOME/.bash_profile to load the config into your current shell. Verify that ANDROID_HOME has been added to your path by running echo $PATH.
You can follow the instructions here: https://facebook.github.io/react-native/docs/getting-started.html#2-install-the-android-sdk
When I run (Ionic run android )ionic project, it build success but there was an issue in deploying to device.
this is the error in my cmd
Follow below steps
Create virtual device from android adb manager.
Open virtual device(emulator).
Open termainal and check your emulator is connected or
not. $ adb devices.
If your emulator is connected then open
terminal and go to your root folder of project.
run followingcommand
$ ionic run android
I hope its work for you
I'm following the Get Started tutorial on https://cordova.apache.org/#getstarted but I'm getting an error despite following the instructions clearly, this is what I did:
npm install -g cordova
cordova create myApp
cd myApp
cordova platform add browser
cordova run browser
but at the end of the last command, I get an error:
C:\code\cordova\test
λ cordova run browser
Running command: cmd "/s /c "C:\code\cordova\test\platforms\browser\cordova\run.bat""
C:\code\cordova\test\platforms\browser\cordova\node_modules\cordova-serve\node_modules\q\q.js:155
throw e;
^
Error: listen EACCES
at exports._errnoException (util.js:746:11)
at Server._listen2 (net.js:1139:19)
at listen (net.js:1182:10)
at Server.listen (net.js:1267:5)
at module.exports (C:\code\cordova\test\platforms\browser\cordova\node_modules\cordova-serve\src\server.js:134:8)
at C:\code\cordova\test\platforms\browser\cordova\node_modules\cordova-serve\src\platform.js:45:16
at _fulfilled (C:\code\cordova\test\platforms\browser\cordova\node_modules\cordova-serve\node_modules\q\q.js:834:54)
at self.promiseDispatch.done (C:\code\cordova\test\platforms\browser\cordova\node_modules\cordova-serve\node_modules\q\q.js:863:30)
at Promise.promise.promiseDispatch (C:\code\cordova\test\platforms\browser\cordova\node_modules\cordova-serve\node_modules\q\q.js:796:13)
at C:\code\cordova\test\platforms\browser\cordova\node_modules\cordova-serve\node_modules\q\q.js:857:14
ERROR running one or more of the platforms: Error: cmd: Command failed with exit code 1
You may not have the required environment or OS to run this project
Does anyone have any idea why this is happening?
I'm using NodeJS v0.12.7 and Cordova 5.4.0
I have had a similar issue on my Debian 8.3 (jessie) with an installed Chromium from the offical debian package-sources.
The detailled error message was:
Error: Error executing "google-chrome --user-data-dir=/tmp/temp_chrome_user_data_dir_for_cordova http://localhost:8000/index.html": /bin/sh: 1: google-chrome: not found
To fix the issue, I have downloaded the (Google-) Chrome-Browser directly from their website, and installed the .deb-package.
After that I did a
cordova platform rm browser
cordova platform add browser
cordova build browser
cordova run browser
and it finally worked.
Summary:
Chromium doesn't work - use chrome
Although the tutorial you linked says browser for some reason. I don't see it on their "supported platform list", try using a platform which you think you're going to develop for and see if you have the same issues.
Link to the platform list (odd that browser isn't listed): https://cordova.apache.org/docs/en/latest/guide/support/index.html
This is a late reply, maybe will help someone else.
instead of
cordova run browser
You should try "cordova serve" command after the add platform browser..
cordova platform add browser
cordova serve
after this hopefully if everything is set up right , you will get a message
"server runing on localhost:/port" . Just goto that address on your browser..
see the magic.
I'm confused why you want to deploy it from the command line to a browser instead of a device or an emulator.
Wouldn't you just open index.html in the browswer?
Take a look at the Cordova Windows Platform Guide
It goes more into detail about running Cordova on a windows platform.
Requirements:
To develop apps for Windows platform:
Windows 8.0, 8.1, or 10, 32 or 64 bit Home, Pro, or Enterprise
Visual Studio 2013
To develop apps for Windows 10:
Visual Studio 2015 RC or higher
Note: For Windows 10, the Visual Studio installer has an option to install tools to build Universal Windows Apps. You must ensure that this option is selected when installing to install the required SDK.
Create a New Project
At this point, to create a new project you can choose between the cross-platform CLI tool described in The Command-Line Interface, or the set of Windows-specific shell tools. The CLI approach below generates an app named HelloWorld within a new hello project directory:
> cordova create hello com.example.hello HelloWorld
> cd hello
> cordova platform add windows
Here's the corresponding lower-level shell-tool approach:
C:\path\to\cordova-windows\package\bin\create.bat C:\path\to\new\hello com.example.hello HelloWorld
Build the Project
If you are using the CLI in development, the project directory's top-level www directory contains the source files. Run either of these within the project directory to rebuild the app:
> cordova build
> cordova build windows # do not rebuild other platforms
> cordova build windows --debug # generates debugging information
> cordova build windows --release # signs the apps for release
Here's the corresponding lower-level shell-tool approach:
C:\path\to\project\cordova\build.bat --debug
C:\path\to\project\cordova\build.bat --release
The clean command helps flush out directories in preparation for the next build:
C:\path\to\project\cordova\clean.bat
Deploy the app
To deploy Windows package:
> cordova run windows -- --win # explicitly specify Windows as deployment target
> cordova run windows # `run` uses Windows package by default
Also before executing the command:
cordova create myApp
make sure to cd into a user directory or a directory where you will keep your cordova apps
Ok, I also had this problem, and couldn't figure out what was going on for the life of me. I finally figured it out:
The guy didn't have Chrome installed. Installed Chrome, poof, problem solved.
Let this be a lesson for us all.