I am getting this error when trying to run Flutter on virtual android device. What is the reason? I even reinstalled android studio from scratch. I also did the SDK installs.
I am getting this error message. What is the reason?
I created a new flutter project by VS Code. but I don't know why I am got this error on run
FAILURE: Build failed with an exception.
What went wrong:
A problem occurred configuring root project 'android'.
Could not resolve all artifacts for configuration ':classpath'.
Could not find com.android.tools.build:gradle:3.6.2.
Searched in the following locations:
https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.6.2/gradle-3.6.2.pom
https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.6.2/gradle-3.6.2.jar
https://jcenter.bintray.com/com/android/tools/build/gradle/3.6.2/gradle-3.6.2.pom
https://jcenter.bintray.com/com/android/tools/build/gradle/3.6.2/gradle-3.6.2.jar
https://repo.maven.apache.org/maven2/com/android/tools/build/gradle/3.6.2/gradle-3.6.2.pom
https://repo.maven.apache.org/maven2/com/android/tools/build/gradle/3.6.2/gradle-3.6.2.jar
https://maven.google.com/com/android/tools/build/gradle/3.6.2/gradle-3.6.2.pom
https://maven.google.com/com/android/tools/build/gradle/3.6.2/gradle-3.6.2.jar
I searched a lot for the gradle problem but I can't see any solution
I installed Android studio, Android SDK 29, Flutter SDK and VS code plugins
I think you need to open the android folder with AndroidStudio and let Gradle to download android dependencies.
solution:
if some countries have been banned maybe you need to use some VPN to download these dependencies. Hotspot shield is a good option cause it will change the IP address of your machine.
I'm trying to run my react-native project on android phone... I follow all steps but when I type in this command react-native start I get:
Scanning folders for symlinks in /var/www/html/laravelReact/testReact/node_modules (6ms)
Running Metro Bundler on port 8081.
Keep Metro running while developing on any JS projects. Feel free to
close this tab and run your own Metro instance if you prefer.
https://github.com/facebook/react-native
Looking for JS files in
/var/www/html/laravelReact/testReact
Metro Bundler ready.ERROR
ERROR watch
/var/www/html/laravelReact/testReact/android/app/build/intermediates/res/merged/debug/values-sv
ENOSPC
In cmd,in your project path, run npm install first,then react-native run-android
I'm trying to install the cordova plugin for barcode scanning, but it gives me the following error:
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring root project 'android'.
> You have not accepted the license agreements of the following SDK components:
[Android SDK Platform 24].
Then I tried to install API 24 using Android SDK manager but it gives me the following message:
Package 'ARM 64 v8a System Image, Android API 24, revision 7' depends on 'Missing SDK Platform Android, API 24'
I tried going to Packages -> Reload but it still gives me the same message. What could be the problem?
Seems to be you are trying to install system image for Android API 24. But you need SDK Platform Android, API 24. Try to install that one.
I try to run react-native app on genymotion android emulator on my mac.
When I write react-native run-android It gets
Running /usr/local/opt/android-sdk/platform-tools/adb reverse tcp:8081 tcp:8081
error: closed
Could not run adb reverse: Command failed: /usr/local/opt/android-sdk/platform-tools/adb reverse tcp:8081 tcp:8081
Building and installing the app on the device (cd android && ./gradlew installDebug...
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
MacBook-Pro-MacBook:ART-CarefulPeople macbook$
Then I've tried:
react-native start
react-native run-android
The same result.
Then I've tried:
react-native bundle --entry-file index.android.js --platform android --bundle-output android/app/src/main/assets/index.android.bundle
curl "http://localhost:8081/index.android.bundle?platform=android" -o "android/app/src/main/assets/index.android.bundle"
react-native run-android
The same result.
I've tried just adb reverse tcp:8081 tcp:8081 and it says error: closed
When I try to run app on android-sdk emulator it gets the same error above but without error: closed.
From android studio I can run this app and it works on genymotion.
Tell me please what should I do to run my app on android emulator?
I had a similar problem, and after spending so much time and lots of searching about this issue the only trick worked for me:
Please Install the Required SDKs as shown in this figure
Configure Required SDKs
If You have already installed it, so you must have to update the following SDKs:
Android SDK Tool (update it to latest version)
Android SDK Platform-tools (update it to latest version)
Android SDK Build-tools (update it to latest version)
Android Support Repository under Extra folder (update it to latest version)
You Must have at least Installed the Same version Android API as the installed Android SDK Build-tools & Android SDK Platform-tools version as shown in the Configure Required SDKs figure above.
Note: Local Maven repository for Support Libraries which is listed as the SDK requirement in the official docs of React-native is now named as Android Support Repository in the SDK Manager .
On macOs I manage to fix this by adding:
export ANDROID_HOME=$HOME/Library/Android/sdk
export PATH=$PATH:$ANDROID_HOME/emulator
export PATH=$PATH:$ANDROID_HOME/tools
export PATH=$PATH:$ANDROID_HOME/tools/bin
export PATH=$PATH:$ANDROID_HOME/platform-tools
to ~/.zsh_profile file.
and than type to your terminal
source $HOME/.zsh_profile
The issue was caused by using iTerm2 shell so it's required to edit its own config instead of default $HOME/.bash_profile as described in the official documentation https://reactnative.dev/docs/environment-setup
React Native (On Mac OS Big SUR)
i was stuck here. But updating the environment settings for Android studio did the trick.
nano ~/.zshrc
and paste
export ANDROID_SDK_ROOT=$HOME/Library/Android/sdk
export ANDROID_HOME=$HOME/Library/Android/sdk
export PATH=$PATH:$ANDROID_HOME/emulator:$PATH
export PATH=$PATH:$ANDROID_HOME/tools:$PATH
export PATH=$PATH:$ANDROID_HOME/tools/bin:$PATH
export PATH=$PATH:$ANDROID_HOME/platform-tools:$PATH
export JAVA_HOME=$(/usr/libexec/java_home)
control + o to save
then enter
then control + x to exit
then do
source ~/.zshrc to compile
kill the runnig terminals and run
npx react-native run-android
You can also try use "doctor" command. It will fix most cases.
npx #react-native-community/cli doctor
I had similar issue running emulator from android studio everytime, or on a physical device. Instead, you can quickly run android emulator from command line,
android avd
Once the emulator is running, you can check with adb devices if the emulator shows up.
Then you can simply use
react-native run-android to run the app on the emulator.
Make sure you've platform tools installed to be able to use adb. Or you can use
brew install android-platform-tools
It happened to me that I had an instance of the packager running with an old project (I ran react-native start as usual). I was using Ubuntu 14.04. So what I did was to stop that instance and go to my project folder and in two different console tabs I ran these two commands separately:
npm start #here I used to run react-native start
react-native run-android
npm start is defined in my package.json as:
"start": "node_modules/react-native/packager/packager.sh"
I don't know if there is a sort of confusing stuff for react-native but that did the trick.
On Windows 10 and Android Studio you can go in Android Studio to "File"->"Settings" in Settings then to "Appearance & Behavior" -> "System Settings" -> "Android SDK".
In the Tab "SDK Tools" active:
"Android SDK Build-Tools .."
"Android Emulator"
"Android SDK Plattform-Tools"
"Android SDK Tools"
If all installed then you can start the Emulator in Android Studio with "Tools" -> "Android" -> "AVD Manager".
If the Emulator run you can try "react-native run-android"
If emulator not installed then try this command, (if homebrew installed)
brew install android-platform-tools
might be it will help.
Had a similar problem. I updated my Genymotion and my android SDK's/libraries/dependencies and all seemed to work. To update my SDK's I used android sdk manager {ANDROID_SDK_FOLDER}/tools/android sdk
In my case, there was an issue with the android/gradlew file. I think this happens when we move the code from Windows to Mac OS.
Reference:- https://stackoverflow.com/a/62216646/4786087
I was able to clean the android/gradlew file by running the following commands -
Step 1. On android folder cmd run
chmod +x gradlew
Step 2. After that run
./gradlew clean
Step 3. Next in the root of the project, run
react-native run-android
This should start building the app and launch it in the simulator if everything else is fine.
Try
brew cask install android-platform-tools
adb reverse tcp:9090 tcp:9090
run the app
In my case, this was happening because the android/gradlew file did not have execute permission. Once granted, this worked fine
You probably haven't run the Android SDK in forever.
So you probably just have to update it.
If you open the Android Studio Software it'll probably let you know that and ask to update it for you. Otherwise refer to following link: Update Android SDK