SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".

SLF4J: Defaulting to no-operation (NOP) logger implementation

SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.

Exception in thread "main" org.activiti.engine.ActivitiException: Could not update Activiti database schema: unknown version from database: '5.18.0.1'

    at org.activiti.engine.impl.db.DbSqlSession.dbSchemaUpdate(DbSqlSession.java:1007)

    at org.activiti.engine.impl.db.DbSqlSession.performSchemaOperationsProcessEngineBuild(DbSqlSession.java:1385)

    at org.activiti.engine.impl.SchemaOperationsProcessEngineBuild.execute(SchemaOperationsProcessEngineBuild.java:25)

    at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)

    at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)

    at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)

    at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)

    at org.activiti.engine.impl.ProcessEngineImpl.<init>(ProcessEngineImpl.java:77)

    at org.activiti.engine.impl.cfg.ProcessEngineConfigurationImpl.buildProcessEngine(ProcessEngineConfigurationImpl.java:413)

    at com.pcitc.activiti.FirstActiviti.main(FirstActiviti.java:18)