Android Question 7.3 version problem

[jatko]

I have some problems after installation 7.3 version.

When I whant to run the project I have the message:

B4A Version: 7.30
Parsing code. (0.03s)
Compiling code. (0.06s)
Compiling layouts code. (0.00s)
Organizing libraries. (0.00s)
Generating R file. (0.04s)
Compiling generated Java code. (1.52s)
Convert byte code - optimized dex. Error
java.lang.UnsupportedClassVersionError: com/android/dx/command/Main : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
Exception in thread "main"


What is the reason?

JDK 9 64bit

 

[DonManfred]

B4A need java 8
Update your java 8 version to a newer one...

 

[jatko]

I have the newest one

 

[DonManfred]

You have installed java 9!
B4A needs Java 8! The NEWEST JAVA 8 Version is needed.

 

[Erel]

The link is available here: https://www.b4x.com/b4a.html

Make sure that B4A uses the correct Java (Tools - Configure Paths).