Question 1 Replies 38 Views × Close popover CHITIKALA A V SATYANARAYANA (APPALA VENKATA SATYA) LT INFOTECH CHITIKALA A V SATYANARAYANA LT INFOTECH IN View Profile Send Message APPALA VENKATA SATYA Member since 2017 6 posts LT INFOTECH Posted: June 8, 2020 Last activity: June 11, 2020 Posted: 8 Jun 2020 4:28 EDT Last activity: 11 Jun 2020 6:25 EDT Weareobservingthe"java.lang.NoClassDefFoundError: javax/activation/DataHandler" errors We are observing the "java.lang.NoClassDefFoundError: javax/activation/DataHandler" errors for correspondence (email) entries in the Agent queue "System-Queue-DefaultEntry" Java: 11.0.7 (AdoptOpenJDK)" We use PKS (Pivotal Container Service) + Docker images for Pega instances, i dont know why issue was happening in admin studio while sending email ? ***Edited by Moderator Marissa to update General to Product*** Pega Platform 7.3 Case Management Communications and Media System Architect × Close popover Facebook Twitter Linkedin Email Copy Link Copied! Posted: 10 months ago Posted: 11 Jun 2020 6:25 EDT × Close popover Kevin Zheng (KevinZheng_GCS) PEGA Director, Software Solutions Engineering Pegasystems Inc. US View Profile Send Message KevinZheng_GCS PEGA replied to APPALA VENKATA SATYA Is this happening all the time? Noticed that you are running PKS and yet the pega version is 7.3. We only support Kubernetes deployment starting Pega 8.2+.