If you are getting the following error while running npx cap run android
> Could not find tools.jar. Please check that /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home
contains a valid JDK installation.then you need to follow the following steps to fix that issue:
Install JDK. The steps ccould be different for your machine. You can follow https://www.oracle.com/java/technologies/downloads/#java8 for other versions.
RUn the echo $JAVA_HOME to get the JDK path
echo $JAVA_HOME
Output will be like this:
/Library/Java/JavaVirtualMachines/jdk1.8.0_331.jdk
Open gradle.properties file present in android folder in your Ionic project.
Add the following line to the last of that file:
org.gradle.java.home=/Library/Java/JavaVirtualMachines/jdk1.8.0_331.jdk/Contents/Home
The jdk1.8.0_331.jd folder could be different depending upon your JDK location.
Running npx cap run android again will work and will launch your Andoird simulator.