java.util.NoSuchElementException when trying to rollback

I am getting the following:

LiquiBase Update Failed: Unknown Reason.  For more information, use the --logLevel flag)
SEVERE 4/9/10 12:52 PM:liquibase: Unknown Reason
at java.util.HashMap$HashIterator.nextEntry(
at java.util.HashMap$
at liquibase.integration.commandline.Main.doMigration(
at liquibase.integration.commandline.Main.main(

when I try to issue a rollback against a PostgreSQL database. Running 2.0-RC1 but this also fails on 1.9.5 release.

This is the only changeset:

<?xml version="1.0" encoding="UTF-8"?>


    Persons Table
      <column name=“id” autoIncrement=“true”  type=“serial”>
      <column name=“last_name”  type=“VARCHAR( 100)”>
      <column name=“birthdate”  type=“DATE”/>

I cannot duplicate the error.  What is the command line you are running?  Can you try it with the newest 2.0 build from ?