Develop Reference

"which adb" command shows the path of adb but "adb devices" says no such file or directory

I'm practicing REACT NATIVE on UBUNTU 18.x OS, everything was running smooth, yesterday i updated my React native,react & android gradle versions then i recived some error like server adb & client adb doesn't match, i fixed this issue using some commands now once the new project run fine, but as soon as i rebooted my system & run the project,it thrown the error
then i checked adb
+adb
output:bash: /usr/bin/adb: No such file or directory
+which adb
output:/usr/bin/adb
+type adb
output:adb is hashed (/usr/bin/adb)
+adb devices
output:bash: /usr/bin/adb: No such file or directory
please help me to resolve this error!

To my knowledge it can be resolved by increasing the num of max users in sysctl.conf
on UBUNTU you can run
sudo nano /etc/sysctl.conf
then press ctrl+O
then press ENTRE
then take the cursor on the end of file and place this line there
fs.inotify.max_user_watches=100000
or simply run this command
sudo sysctl -w fs.inotify.max_user_watches=100000
you can also follow this
no-command-adb-found-error-on-ubuntu

Ionic run app on device exit code 1

I've spent all day trying to fix this error, i have no idea why this happens. i can build both iOS and android, but when i try to run on device, both iOS and android Exit code 1, here the log
BUILD SUCCESSFUL
Total time: 21.515 secs
Built the following apk(s):
/Users/Jose/Desktop/smarket/platforms/android/build/outputs/apk/android-debug.apk
ANDROID_HOME=/Users/Jose/Library/Android/sdk
JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home
Skipping build...
Built the following apk(s):
/Users/Jose/Desktop/smarket/platforms/android/build/outputs/apk/android-debug.apk
Using apk: /Users/Jose/Desktop/smarket/platforms/android/build/outputs/apk/android-debug.apk
Package name: io.ionic.starter
Error: Failed to install apk to device: [ 0%] /data/local/tmp/android-debug.apk
[ 2%] /data/local/tmp/android-debug.apk
...
[ 99%] /data/local/tmp/android-debug.apk
[100%] /data/local/tmp/android-debug.apk
/Users/Jose/Desktop/smarket/platforms/android/build/outputs/apk/android-deb
[ERROR] Cordova encountered an error.
You may get more insight by running the Cordova command above directly.
[ERROR] An error occurred while running cordova run android --device (exit code 1).

Apache Cordova App

I did an app for Android using Apache Cordova I came to the end that the program worked fine, but when I put the program on the tablet does not work, would you tell me why? The function of this app is the link to an altervista database
The error message is:
06-21 09:01:36.531 6705 6720 W System.err: stat failed: ENOENT (No such file or directory) : /data/user/0/com.microsoft.office.excel/files/aria/offlinest‌​oragelow.db

FAILURE: Build failed with an exception. - React Native

I'm Testing My React Native Installation
First
react-native start
After That
react-native run-android
I Connected my Device to pc, But I have This Error:
Scanning 557 folders for symlinks in D:\Projects 2016\Web\Android\FirstApp\AwesomeProject\node_modules (15ms)
JS server already running.
Building and installing the app on the device (cd android && gradlew.bat installDebug)...
FAILURE: Build failed with an exception.
* Where:
Build file 'D:\Projects 2016\Web\Android\FirstApp\AwesomeProject\android\app\build.gradle' line: 1
* What went wrong:
A problem occurred evaluating project ':app'.
> java.lang.UnsupportedClassVersionError: com/android/build/gradle/AppPlugin : Unsupported major.minor version 52.0
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
Total time: 2.533 secs
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:
https://facebook.github.io/react-native/docs/android-setup.html

It seems to the issue related with this question.
And the react-native docs indicates that it requires latest version of JDK.
Update your JDK version to latest one.

Red Screen React Native Reference Error : Can't find variable : _fbBatchedBridge

I followed the steps mentioned in following documents and everything runs perfectly.
https://facebook.github.io/react-native/docs/getting-started.html
https://facebook.github.io/react-native/docs/android-setup.html
https://facebook.github.io/react-native/docs/running-on-device-android.html
Now am trying to run the android app on my device but I get below error.
I tried following to resolve the issue:
react-native start > /dev/null 2>&1 &
adb reverse tcp:8081 tcp:8081
If I try to run without a server, bundle the jsfile into the apk by running:
curl "http://localhost:8081/index.android.bundle?platform=android" -o "android/app/src/main/assets/index.android.bundle"
I get
I followed all the steps outlined in this question react native android failed to load JS bundle but still I am not able to resolve the issue.
I am using my smartphone's data plan on my OSX machine via hotspot. I entered my machine's IP address inet 192.168.43.14 along with port 8081 in the react-native developer setting.
Any idea what am missing here?
Device details:
OSX El Capitan 10.11.1
Nexus 5(Rooted) 6.0.1
Node - v4.2.1