Exception while trying to Configure JIRA Gantt-Chart Plugin

[Deleted user]

I've just installed JIRA Gantt-Chart plugin. When try to Configure plugin inside 'Manage My Plugins' tab I got the exception error:

"...Error creating bean with name 'com.atlassian.upm.license.storage.lib.ThirdPartyPluginLicenseStorageManagerAccessorImpl': Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError ..."

Please notice that license status is Valid, and JIRA version is 5.1.7

Could you help?

[Frank Polscheit · Accepted solution]

This exception is based on compatibility problem: please update Atlassian Universal Plugin Manager (System Plugin: UPM) to version 2.7.7 as indicated within my plugin name "gantt-2.1.6-JIRA5.1-UPM2.7.7.jar".

Regards,
Frank

[Deleted user]

Thanks,

This solves my problem.