[Liquibase] How to fix checksum validation error

Problem
I am editing changelog-master.yaml, I got error message as I start up Spring boot:

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'liquibase' defined in class path resource [org/springframework/boot/autoconfigure/liquibase/LiquibaseAutoConfiguration$LiquibaseConfiguration.class]: 
Invocation of init method failed; nested exception is liquibase.exception.ValidationFailedException: Validation Failed:
     1 change sets check sum
          classpath:/db/changelog/db.changelog-master.yaml::1::albert was: 7:6e574692a29b35c6788f06c99fe2eecc but is now: 7:c5994a0c5ad9c2ba211a4f8e3ced2ec9

How-To
Here has the process to solve this problem:
1. drop all tables which had already created in liquibase
2. clear all data in databasechangelog table

delete from databasechangelog