Am new to NativeScript.
I have done Full setup ( cmd tns doctor with no issues) and created a new project by using cmd tns create.
I have installed Android studio as well, also created virtual device by AVD Manager (Pixel 3 API Q).
Now opened the project in Android Studio and run the cmd tns run android / tns run android --bundle but it throws the error "Cannot find connected devices. Reconnect any connected devices, verify that your system recognizes them, and run this command again."
cmd tns device not showing any devices but tns device android --available-devices shows devices.
Please help me how to connect device and emulators.
Also, i don't have experience in Android studio.
I'm new in Nativescript also and take me two days to configure the entire environment to run a Nativescript app with the android emulator without install the Android Studio. So the problema that you have also I had and to fix it just has to add the "ANDROID_AVD_HOME" to your system variables.
Environment variables
After that you can run your emulator only in a command line window and in another command line window without close your emulator you can type "tns device" and see the active emulators and then run your application using "tns run" or "tns run android --device emulatorname". That works for my after many attempts
Set Environment path for android emulator. First open environment variables and double click on path in system variables then open new window Edit environment variable and add emulator path in this window. Like show in this images.
Related
When I only build application its fine, without errors but on deploy there is fail. I tried on empty project with the same result. I tried with other phone and onther computer, but it still fail. I am using jdk1.8.0_161
https://i.stack.imgur.com/Hi5Gl.jpg
You can try to reconnect your device:
Open the Android Adb Command Prompt (next to Android SDK Manager icon)
Type in adb connect 127.0.0.1:5554 (with 5554 being the port of your device)
I uninstalled all JDKs form computer, restared nad installed new JDK, that helped. Thank you for answer.
I just start learning react-native. when I trying to run the react-native run-android command it is showing error about android emulator.
Please help me to run my first react native app on Genymotion.
simple way:
first connect and android device or run an android emulator then do this steps
1- open android studio
2- click on File->open->navigate to to your react-native project and choose android folder
3- comeback to cmd and run react-antive order again
4- react-native run-android
in gradle-wrapper.properties change distributionUrl=https://services.gradle.org/distributions/gradle-6.3-all.zip
from 5.x
First of all you have to installed genymotion plugin on android studio. After that please run genymotion emulator.
And please open android studio and android project of created RN app.
The relevant gradle version will be downloaded and synchronized.
And then run command "react-native run-android".
Steps to setup for React Native with GenyMotion on MAC Machine
Installed Android Studio
Installed Genymotion
Pointed Genymotion settings custom SDK to: /Users/myusername/Library/Android/sdk
Added path to adb tool directory in .bash_profile to: PATH="/Users/myusername/Library/Android/sdk/platform-tools:${PATH}"
Restarted terminal for path to take effect
Ran exp path in terminal to copy path to exp
Ran adb in terminal to make sure it could find adb in platform-tools directory
Restarted Genymotion
Created and started virtual device in Genymotion
Started Expo XDE and started project
Ran Open on Android from XDE
App started on virtual device created in Genymotion (step 9)
after these steps,
on Terminal fire : npm run android
This has worked for me !
How to run NativeScript app in Windows using Visual Studio Emulator?
trying to get this project:
https://github.com/avatsaev/nativescript-master-detail-angular2
to run in Windows 10 64bit visual studio emulator but always android emulator is launching instead when running:
this is my adb devices:
List of devices attached
169.254.138.177:5555 device
tns livesync android --emulator --watch
also tried
tns livesync 169.254.138.177:5555 --emulator --watch
no luck!
regards
Sean
found the answer
tns run android --device 169.254.138.177:5555
and you get the device from:
adb devices
enjoy!
If the emulator is already running and visible with adb devices - you can just run tns run android. This will build and deploy on all visible devices. Same is valid for tns livesync android.
I'm having huge problems with Titanium Alloy on Windows 10. I am using the Atom editor to write my apps. Whenever I execute ti build, enter the command up to 10(!!!) times until an Android device can be found.
For the Android emulator I get an error message as follows:
[Error] Failed to install apk on "emulator-5554"
[Error] Error: device not found
I tried the commands ti build -p android, ti build -p android -T emulator and ti build -p android -T emulator -C emulator-5554 --log-level info. I also tried starting the emulator manually from avd.exe. I deleted the AVD and created a new one, too
When a device (USB debugging enabled) is connected, i tried ti build -p android -T device and ti build -p android -T device -C XT1032, where XT1032 is the name of the device. I get an error message as follows:
[ERROR] Unable to find any devices
I didn't try so far if the device will be found after some more tries.
When executing the commands, I tried all 4 combinations:
emulator off, device disconnected
emulator off, device connected
emulator on, device disconnected
emulator on, device connected
I uninstalled Titanium, Android SDK, NodeJS and Java and deleted all folders of them. I removed all registry entries, too. Then I installed everything again, Titanium at last. Same problem.
I am using Java 32 bit (v8.0.1020.14), NodeJS v4.2.6 (also tried v6.3.0, but v4.2.x is recommend), Android SDK (SDK Tools v25.1.7, SDK Platform-tools 24.0.1 and SDK Build-tools 21.1.2. I also tried SDK Build-tools 24.0.1, but 21.x.x is recommend) and Titanium (SDK v6.0.0.v20160719180254, CLIv5.0.9).
I modified my environment variables as follows:
PATH:
C:\android-sdk\tools;C:\android-sdk\platform-tools;C:\android-sdk\ndk-bundle;C:\Program Files (x86)\Java\jdk<version>\bin
JAVA_HOME:
C:\Program Files (x86)\Java\jdk<version>
ANDROID_SDK_HOME:
C:\android-sdk
I had to set ANDROID_SDK_HOME and C:\android-sdk\ndk-bundle, otherwise the NDK and the AVDs wouldn't be found by ti setup check.
Here is a screenshot of ti setup check: link to image
I don't know why https://www.google.com is unreachable. Furthermore, Intel HAXM is installed. I even reinstalled it without success. The previous installation of Titanium could find it...
Thanks for your help!
TLDNR: my Titanium Alloy installation has problems finding devices. It only works from time to time without any obvious pattern
The process terminates after building the APK file. If the emulator is running, it is possible to manually install the APK. Use this command in the Command Line:
<Android SDK folder>\platform-tools\adb.exe -s emulator-5554 install -r -d <project path>\<project folder>\build\android\bin\<project name>.apk
The project name is equal to the project folder name. After installing the APK, the application can be started manually in the emulator.
Nonetheless, there are still a lot of issues when developping on Windows 10... I think this forces me to switch to a MAC.
I'm trying to run android emulator with the command tns run android. This starts the emulator but it keeps stuck on Android logo and I get the following error:
(...)
BUILD SUCCESSFUL
Total time: 17.013 secs
Project successfully built.
Using C:\(...)\sample-Groceries\platforms\android\build\outputs\apk\sampleGroceries-debug.apk
Starting Android emulator with image Nexus6
Waiting for emulator device initialization..............
Cannot run your app in the native emulator. Increase the timeout of the operation with the --timeout option or try to restart your adb
server with 'adb kill-server' command. Alternatively, run the Android
Virtual Device manager and increase the allocated RAM for the virtual
device.
(...)
Here is my Android Virtual Device configured:
AVD Manager
Note: I can run the application on my phone anyway, but not on my PC.
Finally I found the problem.
In Android Virtual Device Manager, there was an error I didn't see:
AVD Manager error
Here is a solution which I found to be useful.
enter image description here
You just have to manually activate the emulator, which you can do using android studio or command line. Using the command line, you have to run this command
emulator -avd avd_name [ {-option [value]} … ]
for ex:
/Android/sdk/emulator/emulator -avd test
Once the emulator starts you can run this command
tns run android
I started having similar issue after updating to the latest Android Studio and latest emulators. I switched the VM Heap to 64, and it worked for me. May be worth giving that a try.
Open your Android Virtual Device Manager and download the latest
emulator. That will fix the error.
I had the same problem. I fixed that by:
Open emulator manually from Android Studio (double-click on position in AVD Manager list)
Run tns run android
Works for macOS Sierra.