# diffChangeLog unable to generate change log file with version 4.25.1

**URL:** <https://forum.liquibase.org/t/diffchangelog-unable-to-generate-change-log-file-with-version-4-25-1/8923>\
**Category:** General Discussion\
**Created:** [December 20, 2023, 6:40pm UTC](https://forum.liquibase.org/t/diffchangelog-unable-to-generate-change-log-file-with-version-4-25-1/8923 "2023-12-20T18:40:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![sachin.mallangada](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@sachin.mallangada](https://forum.liquibase.org/u/sachin.mallangada)\
**Post date:** [December 20, 2023, 6:40pm UTC](https://forum.liquibase.org/t/diffchangelog-unable-to-generate-change-log-file-with-version-4-25-1/8923/1 "2023-12-20T18:40:21Z")

</div>

The log is not being generated with the latest version of liquibase. Following is the exception

ERROR: Exception Details  
ERROR: Exception Primary Class: ClassCastException  
ERROR: Exception Primary Reason: class liquibase.changelog.ChangeSet cannot be cast to class com.datical.liquibase.ext.changeset.ProChangeSet (liquibase.changelog.ChangeSet and com.datical.liquibase.ext.changeset.ProChangeSet are in unnamed module of loader java.net.URLClassLoader @5f184fc6)  
ERROR: Exception Primary Source: Microsoft SQL Server 13.00.6435

We are using the pro version of license and the sql driver version is

- internal\lib\mssql-jdbc.jar: Microsoft JDBC Driver for SQL Server 12.4.2 By Microsoft Corporation