# org.h2.driver error

**URL:** <https://forum.flowable.org/t/org-h2-driver-error/8953>\
**Category:** Flowable Engine\
**Created:** [February 5, 2022, 7:16am UTC](https://forum.flowable.org/t/org-h2-driver-error/8953 "2022-02-05T07:16:23Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![ktripathi](https://avatars.discourse-cdn.com/v4/letter/k/7cd45c/32.png) [@ktripathi](https://forum.flowable.org/u/ktripathi)\
**Post date:** [February 5, 2022, 7:16am UTC](https://forum.flowable.org/t/org-h2-driver-error/8953/1 "2022-02-05T07:16:23Z")

</div>

I am using Flowable open source and using the flowable “Getting Started” guide to set up the process engine with the 1.3.176 H2 artifact. However, when i create the JAVA class as per the instructions in the document, i am getting the following error:

# =====================================

Exception in thread “main” java.lang.RuntimeException: Exception while initializing Database connection  
at org.flowable.common.engine.impl.AbstractEngineConfiguration.initDatabaseType(AbstractEngineConfiguration.java:526)  
at org.flowable.common.engine.impl.AbstractEngineConfiguration.initDataSource(AbstractEngineConfiguration.java:491)  
at org.flowable.engine.impl.cfg.ProcessEngineConfigurationImpl.init(ProcessEngineConfigurationImpl.java:960)  
at org.flowable.engine.impl.cfg.ProcessEngineConfigurationImpl.buildProcessEngine(ProcessEngineConfigurationImpl.java:913)  
at org.flowable.HolidayRequest2.main(HolidayRequest2.java:17)  
Caused by: java.sql.SQLException: Error setting driver on UnpooledDataSource. Cause: java.lang.ClassNotFoundException: org.h2.Driver  
at org.apache.ibatis.datasource.unpooled.UnpooledDataSource.initializeDriver(UnpooledDataSource.java:244)  
at org.apache.ibatis.datasource.unpooled.UnpooledDataSource.doGetConnection(UnpooledDataSource.java:223)  
at org.apache.ibatis.datasource.unpooled.UnpooledDataSource.doGetConnection(UnpooledDataSource.java:219)  
at org.apache.ibatis.datasource.unpooled.UnpooledDataSource.getConnection(UnpooledDataSource.java:95)  
at org.apache.ibatis.datasource.pooled.PooledDataSource.popConnection(PooledDataSource.java:432)  
at org.apache.ibatis.datasource.pooled.PooledDataSource.getConnection(PooledDataSource.java:89)  
at org.flowable.common.engine.impl.AbstractEngineConfiguration.initDatabaseType(AbstractEngineConfiguration.java:498)

I have copied the 1.3.176 jar, javadoc and sources files to the .m2\repository\com\h2database\h2\1.3.176 as well.

Any help to fix this error would be helpful.