It seems that you are missing Java environment variable to make your program work.

What you can try:

Solution 1

Try to run caver_analyst with the --jdkhome switch, followed by (I guess) the path to a valid JDK as suggested in your error message. It should solve your problem.

Solution 2

Usually, the path to Java must be defined in a JAVA_HOME environment variable. Yours is obviously not defined, so let's define it manually :

1. Open a Terminal
2. Go to your home directory with command cd
3. Look for a file called ".zshrc" in this directory:

you@yourmac ~ % ls .zshrc
.zshrc

4. If it does not exist i.e. if the command ls .zshrc gives you a "No such file or directory" message, create the file: touch .zshrc
5. Get the path to Java and keep it somewhere : which java
6. Open the newly created file (it's a hidden file so you will have to show hidden files. Alternatively, you can edit the file in command line with nano .zshrc)
7. At the end of the file, add the following line : export JAVA_HOME="/Path/to/your/java/home" and replace /Path/to/your/java/home with the path that you got at step 5.
8. Save, close the file, reboot your laptop.

This file will be automatically read and its instructions executed when you open your profile. The "export" instruction creates an environment variable. You can verify if it was successfully created with echo $JAVA_HOME, echo being a command to display something. The "$" in front of the variable tells echo to look for a variable.

I hope this helps, but if it doesn't, please don't hesitate to share the error messages and step where it fails here...

You have to install the full JDK, not only the JRE.

I had the same issue and solved by installing JDK.

Please use this link to download the latest JDK version 22.

I've solved the issue with my "Unable to load Java Runtime Environment" by using an installed JDK as the jre to be embedded within my app. I was until now using a jre unzipped within a user folder. with the JDK I set the environment variable at the command line

export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_67.jdk/Contents/Home

I then used the

<runtime dir="${env.JAVA_HOME}" />

and it worked as the jre gets installed under the Plugins directory as it should i.e no need to manually copy jre