Support Forum

[bsemenko]

I just installed the TrackStudio standalone version and I get the following error

Unable to launch Java Application

Unable to locate the applications 'main' class. The class 'gran.sman.ServerManager' must be public and have a public static void main(string method) (LAX)


Help

[admin]

I just installed the TrackStudio standalone version and I get the following error

Unable to launch Java Application

Unable to locate the applications 'main' class. The class 'gran.sman.ServerManager' must be public and have a public static void main(string method) (LAX)

Help

What version do you use (SA or SA-JRE) ? What JDK version you use ?

PS. Startup properties available in sman.lax, you can edit it here (JDK path, for example).

[mvasenkov]

You should set correct path to your Java Runtime (JRE) in sman.lax and hsql.lax, or just copy JRE to TrackStudio folder.

[bsemenko]

Thanks, I updated my Java environment to the latest version but I still get the following error


java.lang.UnsupportedClassVersionError: gran/sman/ServerManager (Unsupported major.minor version 47.0)

at java.lang.ClassLoader.defineClass0(Native Method)

at java.lang.ClassLoader.defineClass(ClassLoader.java:403)

at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:101)

at java.net.URLClassLoader.defineClass(URLClassLoader.java:248)

at java.net.URLClassLoader.access$1(URLClassLoader.java:216)

at java.net.URLClassLoader$1.run(Compiled Code)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(Compiled Code)

at java.lang.ClassLoader.loadClass(Compiled Code)

at sun.misc.Launcher$AppClassLoader.loadClass(Compiled Code)

[admin]

Thanks, I updated my Java environment to the latest version but I still get the following error


java.lang.UnsupportedClassVersionError: gran/sman/ServerManager (Unsupported major.minor version 47.0)

This looks like LAX found JDK 1.2 somewhere on your disk and try to use it (JDK 1.2 is not supported).

I suggest you one of the following:
1) Ensure that lax.nl.current.vm in sman.lax point to the JDK 1.3.1+
2) Download TrackStudio with pre-packaged JRE 1.3.1 from our site