I am trying to open my react native app on the android studio device emulator but I am facing an error :
Couldn't start a project on Android: Error running adb: spawn emulator ENOENT
Error running adb: spawn emulator ENOENT
Also, my emulator is in running condition. how to fix this
make sure code is working on web, then restart AVD. by closing it completely. mine is working now. but after some time whenever there is any error in code it crashes again and repeating the process makes it working. also before starting in AVD please close web testing.
Related
When running command
npx react-native run-android
I get error:
error Failed to launch emulator. Reason: No emulators found as an output of `emulator -list-avds`.
If I type emulator -list-avds in powershell I clearly see one emulator up and running. What I`m doing wrong?
You can start emulator from android studio or use command prompt to start emulator.
use this link:https://www.youtube.com/watch?v=NH554nwx0MU
In my case its giving same error error Failed to launch emulator. Reason: No emulators found as an output of emulator -list-avds
but as we started emulator already, we can ignore this error and it works fine.
This is a strange error when I ran React Native (0.63.2) app on Android 8.1 emulator with
npx react-native run-android
Here is the full warning message:
warn No apps connected. Sending "devMenu" to all React Native apps failed. Make sure your app is running in the simulator or on a phone connected via USB.
info Opening developer menu...
Tried adb reverse tcp:8081 tcp:8081 but didn't help. The emulator was working fine. What can go wrong here?
Note: Answer targets only those visitors, who are facing this issue after successfully running once on device
npx react-native run-android
//once its installed on device next time just do
npx react-native start
installs app at your device on first run. I was facing same issue only when I tried npx react-native run-android second time.
So I used npx react-native start then
I just opened my latest app installed by last run and its working and showing me the updates as well
I get this error when trying to start react-native app.
I have path to ANDROID_HOME, JAVA_HOME, platform-tools. I use android studio emulator.
My error mesage in console
Be free to ask me any questions.
Thanks for any help
EDIT1: For starting I use npx react-native run-android, when I use ract-native-cli, it shows the same error.
Have you connected any device? ( any adb devices ? )
I just started with react-native.
But I have a problem with the replay of the project. I use the command react-native run-android, this annoys me an error see capture.
The problem was resolution. I almost opened two console: one I compile with
npm start
and the other run
react-native run-android
When attempting to launch an Expo project from the XDE, I am presented with the following issue where the Expo simulator app will not install:
Error running xcrun simctl install booted
/Users/username/.expo/ios-simulator-app-cache/Exponent-X.Y.Z.app: An
error was encountered processing the command
(domain=NSPOSIXErrorDomain, code=22): Failed to install the requested
application The bundle identifier of the application could not be
determined.
Ensure that the application's Info.plist contains a value
for CFBundleIdentifier.
Error installing or running app. Error: Process exited with non-zero
code: 22
Which will display like the following image in the XDE:
This appears to be a corrupted or incompatible version of the simulator app that is stored on your computer. The Expo Development Environment (XDE) does not resolve this issue automatically.
As mentioned on the Expo and XDE forums, the way to resolve this issue is to navigate to:
~/.expo/ios-simulator-app-cache/
In the Finder, and delete the file Exponent-X.Y.Z where X, Y, and Z represent the version of the app.
Source: https://forums.expo.io/t/error-installing-expo-on-ios-simulator/741