Re: Install Java For Android Studio Mac
Gaia Shaw
I tried to install Android Studio but it gave me several problems.Among them is that they told me that it need Java 8 while on my PC Java 11 is installed.
When I run java -version, the result is the following:
No need to uninstall your other java version(s) that's already installed on your machine.Whenever required, you can conveniently use the utility 'update-alternatives' to choose the Java runtime that you wish to activate. It will automagically update the required symbolic links.
/usr/bin/java is a symbolic link to /etc/alternatives/java which is in turn is a symbolic link to /usr/lib/jvm/java-11-oracle/bin/java. From this, it seems that you've downloaded and configured Oracle's Java 11. Moreover JDK doesn't appear as an standalone app in Ubuntu Software.
The program might require a specific version of java to run. You probably have to download openjdk 8 from the java website or by using the command-line, the link with provide instructions on how to do so. deleting the previous version of java shouldn't be necessary
The Android developers mostly used Java programming languages to build Android apps. If we want to use Java tools or functionality, so for that we have need to download and install Java Development Kit (JDK) is a distribution of Java Technology by Oracle Corporation.
Android Studio is an IDE. What is IDE? IDE is an integrated development environment. In simple words, this is a tool that gives us an environment to create an Android app. There are many tools are available in the market for different purposes like MS word for documentation creation, PowerPoint for presentation making, and Photoshop for photo editing, and much more, the same as Android studio is a tool or IDE for building Android apps.
The OP is not installing a JRE/JDK, is just configuring their JAVA_HOME to use the PATH of the JDK Android Studio bundles, so npx cap run android uses the same java version Android Studio uses when you run the app by using the run button.
I run Flutter in VS Code, and have been having no issues until today. All of a sudden I cannot build to Android. I've been building to 3 different Android devices (1 emulator; 2 devices (one USB; one wireless)) since I got my MBP (came with Big Sur) a couple months ago. Today it can't find Java.
When you install Java (JRE) and try build your app, the build now finds Javas JRE which has everything it is needs to run Java but not build it, this is why the new error is Could not find tools.jar.. The JDK includes the compiler (javac) and tools (like javadoc and jdb) and is what is needed to build your app. You then fixed the second error by forcing gradle (build tool) to look in the correct folder for your JDK.
To anyone who may be following this to find a solution on why the HAXM error persists despite the virtualization is enabled, and the Hyper-V is off. Here is one apparently common thing which may be causing this in Win10: get to Edit Group Policy, Administrative Templates, System, Device guard and there will be two subcategory options. Normally they are set to Default, but you need to set them to Disabled.
Beware: if your java version mismatches the android studio java version by a significant margin, then you might face other problems too, maybe simply install the same version of java on your machine as that of the one which android studio has installed and point the env variable to that version instead.
You posted this only a few hours before I had the same issue. Your solution worked! I had two JRE folders, one in C:\Program Files\Android\Android Studio\jre and the other at C:\Program Files\Java\jre1.8.0_301.
1 - If you have recently installed or updated Android Studio, it installs java version 11, but unreal 4 relies heavily on java 8 as of now, so it is better simply point the variable to that. But keep in mind that if you ever use android studio, you might again need java 11 for some specific library to compile/work, so you might have to change that back OR change android studio settings to make it use java version at a manually defined path (point to java 11).
i have installed android studio , i want to test hello world on emulator , but its saying building process has failt , i try to figure out where is the problem ,i found that on terminal its saying there is no jdk installed :
the problem is that when i download jdk from oracle , once i click on icon to start installation , it doesn't , i am clicking , its not installing and its not showing any errors , Could you give me some help on that issue
Android studio comes with a builtin jdk in it but it is not recommended to use an external jdk in the operating system's environment variable! attached to your android studio especially in OSX! I never needed oracle's jdk for android!
in apple's mac OSX there is already a very basic java installed that comes builtin in the operating system in it. if you want to install oracle java you have to first download the java SE for OSX 64bit and then
The JAVA_HOME environment variable must be set according to your JDK installation path. See the Setting Environment Variables section on how to set up environment variables. Alternatively as of cordova-android 10.0.0 or greater, CORDOVA_JAVA_HOME can be set in place of JAVA_HOME, allowing a JDK install to be used specifically for Cordova development.
When installing on Windows, you need to add the path to the Gradle's binary directory to your path environment variable. See Setting Environment Variables) on how to configure system environment variables.
Note: This is the system's Gradle version. The system's Gradle binary will create the Gradle Wrapper file that declares and obtains the appropriate version of Gradle needed for building the Android application. The system-level and project-level version of Gradle may not and does not need to match. The project-level's version of Gradle is defined in the Cordova-Android's package and set based on what Android supports.
It is recommended to install the highest supported version of the SDK Platform and Build Tools based on the project's installed version of Cordova-Android. Please see the Android API Level Support to find the supported version based on the Cordova-Android versions.
Cordova's CLI requires specific environment variables so it can function correctly. If the environment variables are missing, the CLI will attempt to resolve the variable temporarily. If the missing variables fail to resolve, they must be set manually.
The latter two options both involve including an extra file in your Android platform folder. In general, it is discouraged to edit the contents of this folder because it is easy for those changes to be lost or overwritten. Instead, these files should be copied into the folder as part of the build command by using the before_build hook script.
If you need to customize the build.gradle file, rather than edit it directly, it is recommended to create a sibling file named build-extras.gradle. This file will be included by the main build.gradle script when present. This file must be placed in the app folder of the Android's platform directory (/platforms/android/app). It is recommended to use the before_build hook script to copy this file over.
To change the Gradle JVM args, the --jvmargs flag can be used with both Cordova's build and run commands. This is mostly useful for controlling how much memory gradle is allowed to use during the build process. It is recommended to allow at least 2048 MB.
If your application has enabled the cdvBuildMultipleApks Gradle property (see Setting Gradle Properties), the version code of your app will also be multiplied by 10 so that the last digit of the code can be used to indicate the architecture the apk was built for. This multiplicationwill happen regardless of whether the version code is taken from the android-versionCode attribute or generated using the version.
Note: When updating the android-versionCode property, it is not recommended to increment the version code taken from built apks. It is recommended to increment the code based off the value in your config.xml file's android-versionCode attribute. This is because the cdvBuildMultipleApks property causes the version code to be multiplied by 10 in the built apks and thus using that value will cause your next version code to be 100 times the original, etc.
By default, if the build.json file exists in the project's root directory, it will automatically be detected and used. If the file is not located in the project's root directory or has multiple configuration files, the command line argument --buildConfig must be supplied with the path to the file.
There is also support to mix and match command line arguments and parameters in build.json. Values from the command line arguments takes precedence. This can be useful for specifying passwords on the command line.
You can also specify signing properties by including a .properties file and pointing to it with the cdvReleaseSigningPropertiesFile and cdvDebugSigningPropertiesFile Gradle properties (see Setting Gradle Properties).
For details on the debugging tools that come packaged with the Android SDK, seeAndroid's developer documentation for debugging.Additionally, Android's developer documentation for debugging web appsprovides an introduction for debugging the portion of your app running in theWebview.
Cordova-Android projects can be opened in Android Studio. This can be useful if you wish to use Android Studio's built in Android debugging and profiling tools or if you are developing Android plugins.
Note: When opening your project in Android Studio, it is recommended to NOT edit the code within the IDE. Editing in Android Studio will edit code residing in the platforms directory of your project. It is not updating the code in the projects root www)directory. The changes are liable to be overwritten. Instead, edit the www folder and copy over your changes by running cordova prepare.
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