A modern programming language that makes developers happier.

kotlinlang

What is your Java version? You need to be running with Java 11 at least.

Thanks, I'll upgrade my jdk to 11 and give a try again.

In the future, consider not deleting the post so that others can see it and reference as necessary

Ok, I want to delete it then ask a new post because I have got same error when simple demo with jcef.

But you answer me so quickly, I haven't had time to post a new question yet

<@U01B9A2UMM0> I recommend just moving to Java 17. Android and Gradle work with it now, and it’s a LTS version, meaning that it gets 3 or 5 years (I forget) of security updates / support. It’s a good version to stay on for a while.

Thanks. Another qustion: I want to integrate my existing Java Swing Project compiled and runing on JDK8 with compose-desktop, is this impossible?