Can someone show how to solve this issue associated with
ionic cordova build android
I have tried suggestions provided in this link but the issue remain as it is.
cordova.cmd build android
Checking Java JDK and Android SDK versions
ANDROID_SDK_ROOT=undefined (recommended setting)
ANDROID_HOME=undefined (DEPRECATED)
Failed to find 'JAVA_HOME' environment variable. Try setting it manually.
[ERROR] An error occurred while running subprocess cordova.
cordova.cmd build android exited with exit code 1.
Re-running this command with the --verbose flag may provide more information.
To use cordova your need Java, Android SDK, and Gradle. If your take a peek at the source files, mainly platforms/android/cordova/lib/check_reqs.js you can find the exact code that prints out the messages you get. Cordova checks environment variables you have set up on your system.
For Java, you need the JAVA_HOME variable, you can check variables by typing echo $JAVA_HOME on your terminal if you're using linux. If the variable does not get printed out, you have to set it manually. Install java 8 and in your terminal you can set it with export JAVA_HOME="path_to_java". My path is /usr/lib/jvm/java-8-openjdk-amd64/.
You need to do the same for ANDROID_HOME. When you install Android studio you will have the Android SDK installed. For me it's in my home directory /home/username/Android/Sdk.
For Gradle you don't need to set env variables. You can install it with sudo apt install gradle.
Note that once you close your terminal all the variables you added will disappear. You can make them permanent by adding the export commands to your ~/.profile file and rebooting your system. You can alternatively type source ~/.profile in your terminal to load the variables into that terminal instance.
You may get an error about licences for Android. Just type path_to_your_sdk/sdk/tools/bin/sdkmanager --licenses and accept all the licences.
If you have multiple Java versions installed Cordova may give you trouble since it doesn't only check the JAVA_HOME variable, even though it only need that location. If you're confident that your JAVA_HOME is set right, you can comment out lines 370-375 (the ones that throw an error when the following if statement is true !String(values[0]).startsWith('1.8.')) in the platforms/android/cordova/lib/check_reqs.js and Cordova will work fine.
From the error log, it looks like either, you don't have Java installed or don't have it in your environment variable.
Ensure that <path to java>/java/<jdk version>/bin is in your environment variable. Follow this answer for adding it. https://stackoverflow.com/a/32241360/10602679
Android SDK is required to build Android apps. The recommended way to download it is through Android Studio else you need to download sdk manually
Next, you need to add the Android sdk path in your Environment variable to access the command-line utility. Follow the screenshots provided in this answer for the same. https://stackoverflow.com/a/30900424/10602679
For Mac
unset JAVA_HOME
export JAVA_HOME=$(/usr/libexec/java_home -v "xx.xx.xx")
I'm installing flutter in my Ubuntu 18.10. I'll be using Visual Studio Code for flutter development. I've not installed Android Studio.
I've downloaded Android Command line tools from official android site and extracted it in a separate folder in Documents/development/android
I set the path for ANDROID_HOME in the bashrc file by following the flutter documentation
Here is the .bashrc file
And the Android toolchain error
It seems that , you set the ANDROID_HOME variable but it is not added to PATH.
Make sure you add the ANDROID_HOME to the path as below
export PATH=$PATH:$ANDROID_HOME/bin
and re-launch the console.
update
In order for Android SDK to work fine, you need to set path for the below SDK packages.
..android-sdk\tools
..android-sdk\platform-tools
and your ANDROID_HOME will be
..android-sdk
I am not sure what you are referring to when you are saying that you have downloaded Android Command Line tools. From the output in your terminal, it tells me that you do not have the SDK files in your machine. To download the Android SDK, please see this link here and download the tar file that matches your operating system. Then extract the tar file in the folder which you have set as ANDROID_HOME. This should work fine.
In case you are having the same error, I strongly recommend downloading the Android Studio and install the Android SDK through the Android Studio. The flutter documentation says so as well. You can always uninstall or remove Android Studio after it is being installed and if you are not considering using it.
please replace yout android sdk in thatway this is default installation location of sdk C:\Users\Intel\AppData\Local\android\android_sdk
I've followed step by step the official Getting Started. I started from a clean linux install and installed everything required as per the "Building Projects with Native Code" tab. I have also read the troubleshooting section. I've already created the project using the terminal.
This is the error when I run react-native run-android:
Starting JS server...
Building and installing the app on the device (cd android && ./gradlew installDebug)...
ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation.
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 does not find JAVA_HOME because the latest versions of Android Studio don't require Java to be installed in the system. Instead an internal JRE is used.
Duplicate disclaimer: I've already read this question. This is not what I want. I know how to set the Java home. I just want to run the react project WITHOUT having to install a separate Java.
Questions:
How could I find the internal Java inside the Android Studio folder so that I could point JAVA_HOME to it?
If not possible, could I open and run the project inside the android folder with Android Studio? How would I refresh this project after modifying the React JavaScript code in the parent folder?
Windows 10:
Android Studio -> File -> Other Settings -> Default Project Structure... -> JDK location:
copy string is shown, such as:
C:\Program Files\Android\Android Studio\jre
In the file locator directory window, right-click on "This PC" ->
Properties -> Advanced System Settings -> Environment Variables... -> System Variables
click on the New... button under System Variables, then type and paste respectively:
.......Variable name: JAVA_HOME
.......Variable value: C:\Program Files\Android\Android Studio\jre
and hit the OK buttons to close out.
Some installations may also require JRE_HOME to be set in the same way.
To check, open a NEW black console window, then type echo %JAVA_HOME%. You should get back the full path you typed into the system variable. Windows 10 supports spaces in the filename paths for system variables very well and does not need ~tilde eliding.
I'll answer my own questions and sponfeed my fellow linux users:
1- To point JAVA_HOME to the JRE included with Android Studio first locate the Android Studio installation folder, then find the /jre directory. That directory's full path is what you need to set JAVA_PATH to (thanks to #TentenPonce for his answer).
On linux, you can set JAVA_HOME by adding this line to your .bashrc or .bash_profile files:
export JAVA_HOME=<Your Android Studio path here>/jre
This file (one or the other) is the same as the one you added ANDROID_HOME to if you were following the React Native Getting Started for Linux. Both are hidden by default and can be found in your home directory. After adding the line you need to reload the terminal so that it can pick up the new environment variable. So type:
source $HOME/.bash_profile
or
source $HOME/.bashrc
and now you can run react-native run-android in that same terminal. Another option is to restart the OS. Other terminals might work differently.
NOTE: for the project to actually run, you need to start an Android emulator in advance, or have a real device connected. The easiest way is to open an already existing Android Studio project and launch the emulator from there, then close Android Studio.
2- Since what react-native run-android appears to do is just this:
cd android && ./gradlew installDebug
You can actually open the nested android project with Android Studio and run it manually. JS changes can be reloaded if you enable live reload in the emulator. Type CTRL + M (CMD + M on MacOS) and select the "Enable live reload" option in the menu that appears (Kudos to #BKO for his answer)
I think the right way to find the internal Java used by the Android Studio is to
Open Android Studio
Go to File->Other Settings->Default Project Structure/JDK Location:
and copy what ever string is specified there
This will not require memorising the folder or searching for java and also these steps wil take of any future changes to the java location by the Android Studio team changes I suppose
I'm using Ubuntu 20 on my machine, I have got the same problem the thing that worked for me was:
sudo apt-get install default-jre
you can verify that if the installation was successful or not by:
java --version
you are gonna see something like this in your terminal
openjdk 11.0.12 2021-07-20
OpenJDK Runtime Environment (build 11.0.12+7-Ubuntu-0ubuntu3)
OpenJDK 64-Bit Server VM (build 11.0.12+7-Ubuntu-0ubuntu3, mixed mode, sharing)
It is located on the Android Studio folder itself, on where you installed it.
Please add the JAVA_HOME in the System variable no in the user variable
Create the Variable name as JAVA_HOME
Please use these format in the value box --> C:\Program Files\Java\jdk(version) what you have or downloaded.
I fixed this issue by installing jre, I have jdk already installed but jre was not installed.
For those still not able to set JAVA_HOME from Android Studio installation, for me the path was actually not in C:\...\Android Studio\jre
but rather in the ...\Android Studio\jre\jre.
Don't ask me why though.
Environment variables jre location snippet
For ubuntu 16.0+
You can find the jre folder in android studio on this path /snap/android-studio/current/android-studio/jre
add the following line in your .bashrc or .bash_profile
export JAVA_HOME=/snap/android-studio/current/android-studio/jre
type
sudo nano $HOME/.bashrc
or
sudo nano $HOME/.bash_profile
after this execute the following line to in your terminal where you are executing the npx react-native run-android to reload the terminal with the new changes
source $HOME/.bashrc
or
source $HOME/.bash_profile
All I did is go to my project directory from the cmd (command prompt) I typed java -version.it told me what version it was looking for. so I Installed that version and I changed the path to were the jdk of that version was located .
apparently the system variables were not in sync with the user
variables
run as admin on command prompt and set the variable
i also saw some tips to close the node window and the vscode terminal for
the variable to take effect
tip from this site
https://confluence.atlassian.com/doc/setting-the-java_home-variable-in-windows-8895.html
setx -m JAVA_HOME "C:\Progra~1\Java\jdk1.8.0_XX"
and then
echo %JAVA_HOME%
For fish users:
Open ~/.config/fish/config.fish;
Include line set JAVA_HOME /home/ronald/Documents/android-studio/jre and set PATH $PATH $JAVA_HOME;
Re-open fish terminal.
Welcome :)
After adding the environmental variable , please restart the editor. It may save your ton of time.
Make sure you have java installed
your path is wrong
do this:
export | grep JAVA
THE RESULT: what java home is set to
JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home
follow the path to see if the directories are correct
i did this in my terminal:
open /Library
then i went to /Java/JavaVirturalMachines
turns out I had the wrong "jdk1.8.0_202.jdk" folder, there was another number...
4. you can use this command to set java_home
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home
I ran this in the command prompt(have windows 7 os):
JAVA_HOME=C:\Program Files\Android\Android Studio\jre
where what its = to is the path to that jre folder, so anyone's can be different.
what I did to solve this on windows was to go to the environment variables and set the variable name to JAVA_HOME and then set the variable value to C:\Program Files\OpenJDK\openjdk-8u312-b07
then I set the path to C:\Program Files\OpenJDK\openjdk-8u312-b07\bin
From Android Studio, go to File, Settings, "Build, Execution, Deployment", Build Tools, Gradle. You should see the path to your JDK there, as visible in the screenshot (tested on Android Studio version 2020.3.1). Set an environment variable called JAVA_HOME containing that path (just google "set an environment variable" and followed by your Operating System name).
for those who are new to react native development
please set JAVA_HOME like this
instead of
C:\Program Files\Java\jdk1.8.0_301\bin
just remove "\bin" from path
C:\Program Files\Java\jdk1.8.0_301 after removing \bin
Guys after fight a lot to find the solution, including pass for many of that articles. I just realized that when you extract the Android SDK it doesn't come inside the folder cmdline-tools/latest and doesn't matter the place that I put the folder, opt/Androd_SDK, $HOME/Android_SDK the sequence of the error were the same. Until I got this error running:
➜ bin ./sdkmanager -version
Error: Could not determine SDK root.
Error: Either specify it explicitly with --sdk_root= or move this package into its expected location: /cmdline-tools/latest/
So, basic the solution was add the content of the SDK zip inside of the folders cmdline-tools/latest.
Once you do this, SDK and all the commands will work normally. Just don't forget to finish the configuration, like create the environment of the Android SDK, JAVA and so on.
An awesome article is that one:
https://medium.com/#khairold/setting-up-react-native-on-linux-without-android-studio-a65f3e011bbb
;)
if someone still facing similar issue and looking for an answer for the same? I would like to share the solution which worked for me. And by the way I haven't installed JAVA JDK/SDK in order to resolve the issue.
I am using Visual Studio code to develop react-native apps (using nox player for android app testing), I ran into the similar issue:
Issue:
$
› Building app...
$
ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
$
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation.
C:\Users...\android\gradlew.bat exited with non-zero code: 1
Resolution: In package.json file I have changed "main": "index.js" to "main": "node_modules/expo/AppEntry.js" it worked for me.
It would be great if this solution helps anyone, let me know for any additional information.
Make sure you have installed the following:
Java
JDK
JRE
If you use Ubuntu, maybe its helpful this tutorial. You have solution for how to solve error ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH..
There are many solutions found for Windows or Mac OS on internet to resolve this error. I'm using Ubuntu 22.10 kinetic
Solution:
Go to your Android Studio folder, find folder named jbr, copy all content folder, and if you don't have, create a folder named jre and copy in jre folder, all contents from jbr folder. Case close. Error solved.
java is not set
Video
I am new in Hybrid app development.I have been assigned a task to develop Android & IOS app using Cordova apache.
As I work on Lamp environment, so I started installing the software for the same.
Software I have installed are
Cordova
npm
Android studio
apache ant
PhoneGap
But even after installing and following the all the instructions given on the internet.I am not able to prepare my build for the testing purpose.
Below is the error I am facing/getting when running the command sudo cordova requirements
Requirements check results for android: Java JDK: installed 1.8.0
Android SDK: not installed Failed to find 'ANDROID_HOME' environment
variable. Try setting setting it manually. Failed to find 'android'
command in your 'PATH'. Try update your 'PATH' to include path to
valid SDK directory. Android target: not installed Android SDK not
found. Make sure that it is installed. If it is not at the default
location, set the ANDROID_HOME environment variable. Gradle: not
installed Could not find gradle wrapper within Android SDK. Could not
find Android SDK directory. Might need to install Android SDK or set
up 'ANDROID_HOME' env variable. Error: Some of requirements check
failed
Note:I have already set the environment variable in .bashrc file ,but still facing the issue .
Please help!
in /home/user/.bashrc you must to set the ANDROID_HOME and PATH like this:
export ANDROID_HOME=/home/user/Android/Sdk/
and you PATH like this:
export PATH=/home/user/Android/Sdk/tools/:$PATH
I've read this: Cordova and setting Android using command line
and that How to add android to cordova platform? PATH error? and generally speaking whole documentation. I've added both 'platform-tool' and 'tool' paths, installed android 4.4 and I'm still getting the error from the tittle when I'm trying cordova platform add android to my current project ( in cmd and in netbeans ).
The only thing I haven't done is adding java and ant to path. I was trying with ;%JAVA_HOME%\bin;%ANT_HOME%\bin but still those commands aren't recognizable.
What else can I do?
EDIT:
I've added java and ant to PATH. This is what I get in cmd:
C:\xampp\htdocs\mobile_maps>cordova platform add android
[Error: The command `android` failed. Make sure you have the latest Android SDK
installed, and the `android` command (inside the tools/ folder) added to your pa
th. Output: ]
Second EDIT:
i also get 'xcopy' is not recognized as an internal or external command even though I've added %SystemRoot%\System32; %SystemRoot%; %SystemRoot%\System32\wbem;%SystemRoot%\System32\WindowsPowerShell\v1.0 . I really don't know what else I can do..
usually this happens when:
1. Java is not installed
2. Java is not exported (no JAVA_HOME env variable) or paths are wrong
3. only 64bit version of Java is installed
to fix install 32bit support on your system.
and (as comments below) relog in Windows to environment changes take effect.