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I'm looking for a solution, no success. I reinstalled everything: Android Studio, JDK, Cordova, but nothing. I have all these environment variables defined, but the Java version can't be detected by Cordova. If I run java -version, I get: java version '1.8.0261' Java(TM) SE Runtime Environment (build 1.8.0261-b12). I have updated my Android Studio to Artic Fox as well as Gradle wrapper to 7.0.2 (plugin 7.0.0) and JDK 1.8 -> 11. When I install a debug build on my device through Android Studio, it works,. If you run Android Studio behind a firewall or secure network, an Android Studio First Run dialog appears which displays a button (Setup Proxy) that you click to enter the proxy server settings for your environment. This allows Android Studio to complete the download of the components for a standard install. ∟ Downloading and Installing JDK 1.8. This section describes how to download and install Java SE Development Kit (JDK) 8u45 on a Windows system. Since Android apps are developed in Java language, you need to have a copy of JDK (Java Development Kit) installed on your computer first. The latest version of JDK is Java SE Development Kit 8u45.

This article explains how to resolve Java Development Kit (JDK) 9 orlater errors in Xamarin.Android.

Overview

Xamarin.Android uses the Java Development Kit (JDK) to integrate withthe Android SDK for building Android apps and running the Androiddesigner. The latest versions of the Android SDK (API 24 and higher)require JDK 8 (1.8) or the Microsoft Mobile OpenJDK Preview. Becausethe Android SDK tools available from Google are not yet compatible withJDK 9, Xamarin.Android does not work with JDK 9 or later.

JDK Errors

If you try to build a Xamarin.Android project with a version of theJDK later than JDK 8, you will get an explicit error indicating thatthis version of JDK is not supported. For example:

To resolve these errors, you must install JDK 8 (1.8) as explained inHow do I update the Java Development Kit (JDK) version?.Alternately, you can install theMicrosoft Mobile OpenJDK PreviewThe Microsoft Mobile OpenJDK will eventually replace JDK 8 for Xamarin.Android development.

Checking the JDK Version

You can check to see which version of Java you have installedby entering the following command (the JDK bin directory mustbe in your PATH):

If JDK 9 installed, you will see a message like the following:

If JDK 9 or later is installed, you must install Java JDK 8 (1.8) orthe Microsoft Mobile OpenJDK Preview. For information about how toinstall JDK 8, seeHow do I update the Java Development Kit (JDK) version?.For information about how to install the Microsoft Mobile OpenJDK, seeMicrosoft Mobile OpenJDK Preview.

Note that you do not have to uninstall a later version of the JDK;however, you must ensure that Xamarin is using JDK 8 rather than alater JDK version. In Visual Studio, clickTools > Options > Xamarin > Android Settings.If Java Development Kit Location is not setto a JDK 8 location (such as C:Program FilesJavajdk1.8.0_111),click Change and set it to the location where JDK 8 is installed.In Visual Studio for Mac, navigateto Preferences > Projects > SDK Locations > Android > Java SDK(JDK) and click Browse to update this path.

Known Issues with JDK 9

Jdk 8 For Android Studio

apksigner

Jdk 1.8 Is Missing Android Studio

Jdk 1.8 For Android Studio 64-bit

There is a known issue with apksigner and JDK 9 in which theapksigner.bat file invokes the apksigner.jar with -Djava.ext.dirsinstead of -classpath which JDK 9 expects. It is recommended to useJDK 8 (1.8). For information about how to install JDK 8, seeHow do I update the Java Development Kit (JDK) version?

If you have installed JDK 9, ensure that the following path is not set onyour PATH environment variable as it will still point to JDK 9:C:ProgramDataOracleJavajavapath. After removing it, java-version at acommand line should show JDK 8.