I am trying to get expo CLI and ADB working on my PC (Win 10 64bit) with the Genymotion emulator Google Pixel 3.
When I run "on android device/ emulator from expo cli" I get the following logs:
Couldn't start project on Android: Error running adb: No Android device found. Please connect a device and follow the instructions here to enable USB debugging: https://developer.android.com/studio/run/device.html#developer-device-options. If you are using Genymotion go to Settings -> ADB, select "Use custom Android SDK tools", and point it at your Android SDK directory.
See this image
I am already install latest verson of Virtual Box, genymotion emulator and properly install expo in my "c:\repos" now when I click run on emulator from expo cli I get this error. sdk manager is already install in my c:\ and in genymotion settings I setup this path in adb : "C:/Program Files/Genymobile/Genymotion" and it's show this folder is valid.
Error occurred because the current computer and emulator are not connected.
Did you set up the Genymotion as described in the error?
If you hadn't, go to Settings -> ADB, select "Use custom Android SDK tools" ->
and point it at your Android SDK directory.
/Users/username/Library/Android/sdk
Run emulator, click developer options, enable USB debugging and enable Wi-Fi to Cellular.
Run the Genymotion Shell and type devices list to find the IP address of the device.
Open the terminal and enter adb connect deviceIp:5555. Make sure the connection to adb device is correct. Enter adb usb and adb tcpip 5555.
Related
I am new to android development and am trying to learn react-native by following a tutorial here. The problem is whenever I try to start my react-native project within my simulated android device, expo cli cannot find it. This step is at the 25 minute mark of the video and my progress can be summarized as follows:
I have react-native on my machine and have installed expo cli
I've downloaded Android Studio which is located: C:\Users..\AppData\Local\Android\Sdk
I have my emulated android device up and running via Virtual Device
Manager
After typinng "npm start" When I type "a" within the terminal of WSL to run this app on my virtual android device I get the following message when it tries to open the emulator:
No Android connected device found, and no emulators could be started
automatically. Please connect a device or create an emulator
(https://docs.expo.dev/workflow/android-studio-emulator).
At which point my expo developer tools browser window displays that
Expo Developer Tools is disconnected from Expo CLI. Use the expo start
command to start the CLI again
When I goto the terminal and do this, it just restarts this failure over again when I type "a" to start my app in the simulated android device. Some of the solutions I've tried are:
following the documentation on the workflow android studio emulator link. I find though that all of the options within my version of android studio look drastically different, and that my file location is much different than what they have listed.
uninstalling and reinstalling Android Studio
Making sure SDK tools is checked as per this stack overflow post
following the instructions in this stack overflow post, however I am not trying to connect a phone via usb so this does not help me.
My setup is as follows:
OS: Windows 10
VM: WSL2 Ubuntu 20.04.3 LTS
Text Editor: Visual Studio Code 1.63.2
Android Studio: BumbleBee 2021.1.1
Expo CLI version: 5.0.3
here are some screen shots:
^ that one is right before I try to type "a" within the expo cli within terminal.
When I run "npm start" and then 'a'/ "sudo expo start --android" the connection to the android emulator fails.
the error I get is:
Couldn't start project on Android: Error running adb: No Android connected device found, and no emulators could be started automatically.
Please connect a device or create an emulator (https://docs.expo.io/workflow/android-studio-emulator).
Then follow the instructions here to enable USB debugging:
https://developer.android.com/studio/run/device.html#developer-device-options. If you are using Genymotion go to Settings -> ADB, select "Use custom Android SDK tools", and point it at your Android SDK directory.
While trying to debug it I found:
The app is running on web browser
While launching the AVD on emulator on android-studio I get on android studio events:
Emulator: E0810 10:41:04.480101550 89662 socket_utils_common_posix.cc:201] check for SO_REUSEPORT: {"created":"#1597045264.480085451","description":"SO_REUSEPORT unavailable on compiling system","file":"/mnt/tmpfs/src/android/emu-master-dev/external/grpc/src/core/lib/iomgr/socket_utils_common_posix.cc","file_line":169}
I Made sure that .bashrc includes the right SDK path: "export ANDROID_SDK=/home/user/Android/Sdk", and followed this link
I'll mention that the emulator already ran my app, I'm not sure what changed the configuration and made the app not running on android-studio emulator. I re-install android-studio but it's still have no connction
I did following command to emulate my react native app on genymotion, but I got an error.
expo start -a
Here is the error.
This computer is not authorized to debug the device. Please follow the
instructions here to enable USB debugging:
https://developer.android.com/studio/run/device.html#developer-device-options.
If you are using Genymotion go to Settings -> ADB, select "Use custom
Android SDK tools", and point it at your Android SDK directory.
It seems like it might not have been able to find your adb path. You have to install adb and set adb path in genymotion and system.
Open genymotion and go to Settings > ADB tab, select "Use custom Android SDK tools", and point it to your Android SDK directory. And then please make sure that android sdk tools is in your system path.
set PATH=%PATH%;path\to\android\Sdk\platform-tools
Real example on windows, android sdk tools directory path depends on installation directory:
set PATH=%PATH%;C:\Users\<username>\AppData\Local\Android\Sdk\platform-tools
or
set PATH=%PATH%;C:\Program Files\android-sdk-windows\platform-tools
I am just starting with react native. I created my first app using React Native CLI. It was created without any errors. When I am trying to react-native run-android It ends up with this error as shown.
1) Run command " adb devices "
It will let you know if any device is connected or not
2) Try running by setting the Environment variable and proxy commands.
Follow this link: http://facebook.github.io/react-native/releases/0.38/docs/getting-started.html#content
first Start the android emulator.
From your react native folder run:
cd android && gradlew clean
THEN
cd .. && react-native run-android
Make sure you have your device connected to your computer, you can check that by running:
adb devices
if it's not connected, in your phone go to: settings > Developer Options > (enable) USB debugging.
Else if you want to run it from an emulator you will need to either install Genymotion, or AndroidStudio.
1) Run command adb devices to list all connected devices.
2) Then run command emulator #YOUR_DEVICE_NAME.
3) If adb devices will not show any devices then follow this link
http://facebook.github.io/react-native/releases/0.38/docs/getting-started.html#content
Have an android phone attached to your computer via USB cable and enable USB Debugging in the developer options. To get to the developer options open your About Phone and tap the version number several times.
Once it is in USB Debugging mode, run adb devices and a prompt will show up on your phone. Accept it and you should be good to go.
Another problem I had was I needed to path my SDK location, if you run into that then this will help: React Native android build failed. SDK location not found
I am building React Native app.
It is working well when I launch the app in terminal on Mac using "react-native run-android".
But when I got the apk file and installed it on another android device manually, it does not work.
It looks like this.
If you are connected via cable, do the following:
1. Goto > Settings > About Device
2. Then Software Info
3. Then > Build Number
4. Now Tap (Click) multiple times on Build Number to Enable Developer Options
5. Here you go not the Developer Options will be visible in your Settings
6. Now Go inside the Developer Options and Enable USB Debugging Mode.
7. Open your terminal
On Windows open Android SDK Manger > Platform Tools
Type:
$ adb devices
This will show you the devices and simulator/virtual-devices that you have on you computer.
8. Forward requests from your device
Type:
$ adb reverse tcp:8081 tcp:8081
9. Run it
Type:
$ npm run android
The app should appear on your device
Looks like the source code in your APK is looking for the package server.
Read this on how to build APKs for react-native: React-Native - Generating Signed APK
If your devices is connected via cable:
If you're on a physical device connected to the same machine, run 'adb reverse tcp:8081 tcp:8081' to forward requests from your device
Otherwise, you can still do this via Wifi by following the last point in the error:
If your device is on the same Wi-Fi network, set 'Debug server host & port for device' in 'Dev settings' to your machine's IP address and
the port of the local dev server -e.g. 10.0.1.1:8081
Please find the below steps to run react-native code on a physical mobile device:-
Please make sure you are on the same wifi network(Mobile and Laptop).
Run your code and install it on the mobile through the Android Studio.
The app will install and asking you to change your "dev settings".
Shake your phone and go to "dev settings" and type your machine's IP address(192.16.XX.XXX:8081).
Close the app once and open again, in the terminal you will see like this
6. wait for a minute app will install and reflect the changes.
Get a list of all the devices:
adb devices
Then set the which device to run on:
adb -s <device name> reverse tcp:8081 tcp:8081
Then deploy the app:
react-native run-android
If you've upgraded your version of react-native since generating your android project files, you might want to regenerate those now. I think you can use react-native upgrade.
The following are required in order to run a React Native app on Android:
Android Studio
Android SDK
JDK 8 (installation instructions for macOS here and Windows here)
Answer Source: Make An App
We can run the React Native app on Android platform by running the following code in the terminal.
react-native run-android
Before you can run your app on Android device, you need to enable USB Debugging inside the Developer Options.
If you get a “bridge configuration isn’t available” error. Then use below command to solve
adb -s tcp:8081 tcp:8081
Now re-run the app using
react-native run-android
The command for correcting networking on the physical device should instead be:
adb -s reverse tcp:8081 tcp:8081
When USB Debugging is enabled, you can plug in your device and run the code snippet given above.
Configure your app to connect to the local dev server via Wi-Fi
Make sure your laptop and your phone are on the same Wi-Fi network.
Open your React Native app on your device. You can do this the same
way you'd open any other app. You'll see a red screen with an error.
This is OK. The following steps will fix that. Open the Developer
Go to Dev Settings. Go to Debug server host for device. Type in your machine's IP address and the port of the
local dev server (e.g. 10.0.1.1:8081).
On Mac, you can find the IP address in System Preferences / Network. On Windows, open the command
prompt and type ipconfig to find your machine's IP address (more
info).
Go back to the Developer menu and select Reload JS.
The Native Android emulator is slow. We recommend downloading Genymotion for testing your app.
The developer menu can be accessed by pressing command + M.