NoClassDefFound error

[holcakr]

Hi,

I've succesfully configured integration between TeamCity and Slack (I have applied all configuration steps), but no notification messages was succesfully sent to this moment. In Teamcity logs I've found errors (one error for each one attempt to send notification):

WARN - jetbrains.buildServer.SERVER - Exception occurred in notificator
java.lang.NoClassDefFoundError: com/enlivenhq/teamcity/SlackPayload
at com.enlivenhq.slack.SlackWrapper.getFormattedPayload(SlackWrapper.java:83)
at com.enlivenhq.slack.SlackWrapper.send(SlackWrapper.java:41)
at com.enlivenhq.teamcity.SlackNotificator.sendNotification(SlackNotificator.java:152)
at com.enlivenhq.teamcity.SlackNotificator.notifyBuildSuccessful(SlackNotificator.java:66)
at jetbrains.buildServer.notification.impl.UserRulesAwareNotificationListener$NotificatorEventAdapter.buildSuccessful(UserRulesAwareNotificationListener.java:280)
at jetbrains.buildServer.notification.impl.UserRulesAwareNotificationListener.buildSuccessful(UserRulesAwareNotificationListener.java:64)
at jetbrains.buildServer.notification.NotificationProcessor$2.call(NotificationProcessor.java:2)
at jetbrains.buildServer.notification.NotificationProcessor$18.run(NotificationProcessor.java:2)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

My version of TeamCity is 9.1.6 (build 37459).
Am I missed some critical prerequisites? Does somebody know how can I proceed?

Thanks.

[cy6erskunk]

Hi @Holcak, what's your teamcity-slack plugin version?