@SampatK16588432 check pega.logs - make sure that you are running as sysadm4 - some rules are created and if you don't have the access right, you will get an exception on migration

@SampatK16588432 The "Constellation Modernization Assistant" is throwing a Java Null Pointer Exception (NPE) when clicking "migrate the application" using version 1.0.7, though earlier versions worked fine. This likely indicates that the new version is expecting some required data or configuration that is missing or null during execution. To fix this, check if any required fields, configurations, or context parameters are missing in the application setup before triggering the migration. Also, review the PegaRULES log or stack trace to identify the exact class or method where the NPE occurs. As a workaround, consider using the previous version that works unless you need new features from 1.0.7, and report the issue to Pega support with logs and configuration details for a fix.