Omnet 5.3 in installed on mac, but does not start the ide.

[Sami Ullah]

Here is the log file attached,

The log files contains.

!SESSION Fri Apr 20 11:33:33 PKT 2018 ------------------------------------------

!ENTRY org.eclipse.equinox.launcher 4 0 2018-04-20 11:33:33.655

!MESSAGE Exception launching the Eclipse Platform:

!STACK

java.lang.UnsupportedClassVersionError: org/eclipse/core/runtime/adaptor/EclipseStarter : Unsupported major.minor version 51.0

at java.lang.ClassLoader.defineClass1(Native Method)

at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)

at java.lang.ClassLoader.defineClass(ClassLoader.java:621)

at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)

at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)

at java.net.URLClassLoader.access$000(URLClassLoader.java:58)

at java.net.URLClassLoader$1.run(URLClassLoader.java:197)

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

at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:650)

at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)

at org.eclipse.equinox.launcher.Main.run(Main.java:1499)

Please help me to solve this issue.

Thanks

[Michael Kirsche]

You need to update to a newer Java version for your Mac OS installation. Java SE 7 (major version 51.0) is too old, you need at least Java SE 8 to run the latest OMNeT 5.x versions.
Check the installation manual for more info.