When I run ““cordova run android“` in the path of my project I get
Android Studio project detected cordova-android-support-gradle-release: Android platform: V7+ cordova-android-support-gradle-release: Wrote custom version '27.+' to /path/to/platforms/android/app/build.gradle cordova-android-support-gradle-release: Wrote custom version '27.+' to /path/to/cordova-android-support-gradle-release/norsan-cordova-android-support-gradle-release.gradle ANDROID_HOME=/usr/lib/android-sdk JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64 Requirements check failed for JDK 1.8 or greater
My version of Java
$ java --version openjdk 11.0.5 2019-10-15 OpenJDK Runtime Environment (build 11.0.5+10-post-Ubuntu-0ubuntu1.119.04) OpenJDK 64-Bit Server VM (build 11.0.5+10-post-Ubuntu-0ubuntu1.119.04, mixed mode, sharing)
My version of javac
$ javac --version javac 11.0.5
My version of Cordova
$ cordova --version 9.0.0 (cordova-lib@9.0.1)
My version of Node
$ node --version v10.15.2
My version of Nodejs
$ nodejs --version v10.15.2
My version of NPM
$ npm --version 5.8.0
My version of Gradle
$ gradle -version WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by org.codehaus.groovy.reflection.CachedClass (file:/usr/share/java/groovy-all.jar) to method java.lang.Object.finalize() WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.reflection.CachedClass WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release ------------------------------------------------------------ Gradle 4.4.1 ------------------------------------------------------------ Build time: 2012-12-21 00:00:00 UTC Revision: none Groovy: 2.4.16 Ant: Apache Ant(TM) version 1.10.5 compiled on March 28 2019 JVM: 11.0.5 (Private Build 11.0.5+10-post-Ubuntu-0ubuntu1.119.04) OS: Linux 5.0.0-38-generic amd64
I found that android-studio --version didn’t do anything but silently wait, but when I open the program through the graphical user interface I see that the version is 3.6.1.
My version of androidsdk is Unknown… Not sure why.
$ androidsdk --version SDK_ROOT=/home/galen/snap/androidsdk/21/AndroidSDK Picked up _JAVA_OPTIONS: -Duser.home=/home/galen/snap/androidsdk/21 Unknown version
My version of Ubuntu
$ cat /etc/*release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=19.04 DISTRIB_CODENAME=disco DISTRIB_DESCRIPTION="Ubuntu 19.04" NAME="Ubuntu" VERSION="19.04 (Disco Dingo)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 19.04" VERSION_ID="19.04" HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" VERSION_CODENAME=disco UBUNTU_CODENAME=disco
My understanding is that Java 11 comes later than JDK 1.8, so why does the requirements check fail? And, how do I fix this requirements check failure?
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Answer
Update:
Java 11 is supported for cordova 10+ which allows for the same minimum Android versions as cordova 9. This should now be the preferred solution.
Original answer (for reference):
You are correct that Java 11 is more recent than JDK 1.8 and that it should work in theory.
However, cordova explicitly requires JDK 1.8 still:
Android doesn’t use oracles java but their own implementation, which at the moment is like java 8. So this is an android limitation, not something cordova can fix.
(cf. also issue 510)
Their development guide explicitly mentions JDK 1.8 as well:
Java Development Kit (JDK)
Install Java Development Kit (JDK) 8.
So the fix for now would be installing JDK 1.8 (if you go for Oracle note their recently changed license terms). You may watch PR 928 that attempts to ease that restriction, though.