IMC update failing (Unsupported major.minor version)

[Alfred Macher]

So, I want to move my IMC installation to a new server. Before that, I'm gonna upgrade to the newest version ("7.3 E0706P11").

My current install is on a WinSrv2012R2 (which is still supported) and has the version "7.3 E0504P04".

Looking at the prerequisites, nowhere is a specific Java version mentioned, but the error does kinda point to that... We've got "OpenJDK 11.0.4-1" installed.

2022-09-28 12:21:47 [INFO ] [AWT-EventQueue-0] [com.h3c.imc.deploy.InstallPathChoosingDialog::d(55)] Start to check fuseversion.
2022-09-28 12:21:47 [INFO ] [AWT-EventQueue-0] [com.h3c.imc.deploy.InstallPathChoosingDialog::d(55)] Installing version not a fuseversion.
2022-09-28 12:21:56 [INFO ] [SwingWorker-pool-2-thread-1] [com.h3c.imc.deploy.install.InstallationComponentInfo::b(601)] Can not find java-monitor configurations in deploy configs, but found in update configs
2022-09-28 12:21:56 [INFO ] [SwingWorker-pool-2-thread-1] [com.h3c.imc.deploy.install.InstallationComponentInfo::b(601)] Can not find java-monitor configurations in deploy configs, but found in update configs
2022-09-28 12:21:57 [ERROR] [AWT-EventQueue-0] [com.h3c.imc.deploy.install.wizard.InstallFolderChoosePanelDescriptor::aboutToDisplayPanel(204)]
java.util.concurrent.ExecutionException: java.lang.UnsupportedClassVersionError: com/h3c/imc/deploy/tasks/plat/UpdateWebtopoConfTask : Unsupported major.minor version 51.0

Does someone know how to resolve this issue so I can update?

Thanks!

[Sunitha_Mod · Accepted solution]

Hello @Alfred Macher, 

Thank you for posting! HPE Networking forum has moved to Aruba Airheads Community and for HPE networking and Aruba product queries, request you to visit and post your query here: Aruba Airheads Community 

You can refer to the below link as well for more details:

HPE Networking forum migration to Aruba Airheads c... - Hewlett Packard Enterprise Community

[Alfred Macher]

Will do, thanks!

[francoisg7147]

Hello Alfred,
I have the same problem, did you solve it?
Thank you for your help.

[Alfred Macher]

Woah, that was a long time ago^^

No, I moved the iMC to a different computer and installed the newest version directly.

Sorry that I cannot be of more help; iMC is finnicky AF...

[francoisg7147]

Hello Alfred,
Thank you for your feedback.
Best regards.