Question2Replies307Views SubhajitChattopadhya Member since 2010 36 posts Infosys Australia Posted: 3 years agoLast activity: 3 years 3 months ago Closed BadClassDefinitionException in logs for Pega 7.1.9Dear Team,We are having a lot of BadClassDefinitionException in logs and it seems most of these are occurring either for ExecuteSLA or ProcessEvent activities. We are using Pega 7.1.9.Could you please let me know if this can be prevented or what are the preventive measures we should be considering for mitigating this issue?Thanks and Regards,Subhajit***Updated by moderator: Lochan to close post*** Data Integration Java and Activities ×Close popoverFacebookTwitterLinkedinEmail Copy Link Copied! Moderation Team has archived post This thread is closed to future replies. Content and links will no longer be updated. If you have the same/similar Question, please write a new Question. Posted: 3 years agoSubhajitChattopadhya Infosys Australia replied to SubhajitChattopadhyaEnclosing the log snippet Posted: 3 years agoMaartenV9058 Rabobank replied to SubhajitChattopadhyaYou have a top level or embedded page with an empty value for property pxObjClass or it's missing. Use the tracer to pinpoint which page has the problem.