Database update problem

Im getting the following error on Context.startup method

org.openmrs.util.DatabaseUpdateException: Unable to check if database updates are required

@haris01 can you please give the full stack trace?

INFO 10/14/16 9:36 AM:liquibase: Reading from liquibasechangelog WARNING 10/14/16 9:36 AM:liquibase: modifyDataType will lose primary key/autoincrement/not null settings for mysql. Use and re-specify all configuration if this is the case org.openmrs.util.DatabaseUpdateException: There was an error while updating the database to the latest. file: liquibase-update-to-latest.xml. Error: Validation Failed: 1 change sets check sum liquibase-update-to-latest.xml::200902142213::ewolodzko is now: 3:ace82a1ecb3a0c3246e39f0bebe38423

at org.openmrs.util.DatabaseUpdater.executeChangelog(DatabaseUpdater.java:155)
at org.openmrs.util.DatabaseUpdater.executeChangelog(DatabaseUpdater.java:115)
at org.openmrs.api.context.Context.updateDatabase(Context.java:1114)
at com.ihsinformatics.openmrstest.OpenMRSTestMain.main(OpenMRSTestMain.java:23)

Caused by: liquibase.exception.ValidationFailedException: Validation Failed: 1 change sets check sum liquibase-update-to-latest.xml::200902142213::ewolodzko is now: 3:ace82a1ecb3a0c3246e39f0bebe38423

at liquibase.changelog.DatabaseChangeLog.validate(DatabaseChangeLog.java:141)
at liquibase.Liquibase.listUnrunChangeSets(Liquibase.java:625)
at org.openmrs.util.DatabaseUpdater.executeChangelog(DatabaseUpdater.java:211)
at org.openmrs.util.DatabaseUpdater.executeChangelog(DatabaseUpdater.java:167)
at org.openmrs.util.DatabaseUpdater.executeChangelog(DatabaseUpdater.java:152)
... 3 more

This means that some change sets changed since the last time that you did run them. If you just setting up a development environment or testing, the easiest is to just drop the database and runtime properties file and then run the setup again.