Unable to add a windows slave into Jenkins 2.177

[ANKUSH CHANDEL]

Hello All,

Please help me out with adding a Windows slave into Jenkins.

I am using Launch Method as "Launch agent by connecting it to the master".

Which provides me three options to connect the slave machine.

Connect agent to Jenkins one of these ways:

•  Launch agent from browser

• Run from agent command line:

  javaws http://Location:Port/computer/WIN_10_XXXXX/slave-agent.jnlp

• Or if the agent is headless:

  java -jar agent.jar -jnlpUrl http://Location:Port/computer/WIN_10_XXXXX/slave-agent.jnlp -workDir "C:\Jenkins\

I have tired these steps but it saying unable to launch the application.

C:\Jenkins>java -jar agent.jar -jnlpUrl http://Location:Port/computer/WIN_10_XXXXX/slave-agent.jnlp -workDir "C:\Jenkins"

Exception in thread "main" java.lang.UnsupportedClassVersionError: hudson/remoting/Launcher : Unsupported major.minor version 52.0

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

        at java.lang.ClassLoader.defineClass(Unknown Source)

        at java.security.SecureClassLoader.defineClass(Unknown Source)

        at java.net.URLClassLoader.defineClass(Unknown Source)

        at java.net.URLClassLoader.access$100(Unknown Source)

        at java.net.URLClassLoader$1.run(Unknown Source)

        at java.net.URLClassLoader$1.run(Unknown Source)

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

        at java.net.URLClassLoader.findClass(Unknown Source)

        at java.lang.ClassLoader.loadClass(Unknown Source)

        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

        at java.lang.ClassLoader.loadClass(Unknown Source)

        at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)

C:\Jenkins>javaws http://Location:Port/computer/WIN_10_XXXXX/slave-agent.jnlp

C:\Jenkins>java -jar agent.jar -jnlpUrl http://Location:Port/computer/WIN_10_XXXXX/slave-agent.jnlp -workDir "C:\Jenkins"

Error: Registry key 'Software\JavaSoft\Java Runtime Environment'\CurrentVersion'

has value '1.8', but '1.7' is required.

Error: could not find java.dll

Error: Could not find Java SE Runtime Environment.

Please help me out with this.

[Mark Waite]

The "Unsupported major/minor version" message means that you are attempting to run Java code that requires a Java 8 virtual machine on a Java version that is less than Java 8.  It could be a configuration error in your PATH.  It could be an installation error on the computer.  It could be that the default Java installed on the computer is older than Java 8.

Refer to https://stackoverflow.com/questions/22489398/unsupported-major-minor-version-52-0

--
You received this message because you are subscribed to the Google Groups "Jenkins Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-use...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/35fd8d79-455b-4f35-8f27-ee5135b71893%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

--

Thanks!

Mark Waite