# Generate-changelog NumberFormatException

Hi guys, I’m trying to use the generate-changelog command on my schema, but I’m getting this SEVERE error message:
SEVERE [liquibase.integration] java.lang.NumberFormatException: Character ( is neither a decimal digit number, decimal point, nor “e” notation exponential mark.
liquibase.exception.CommandExecutionException: liquibase.exception.LiquibaseException: Unexpected error running Liquibase: java.lang.NumberFormatException: Character ( is neither a decimal digit number, decimal point, nor “e” notation exponential mark.
What does that exactly mean? Is it trying to parse a value? how can I know the column triggering that exception?
Thanks a lot!!!

Check for invalid characters on the default value for columns of type REAL. i.e. (0)::Real that was my case.