# Using postgres db / flowable springboot base app **URL:** \ **Category:** Flowable Engine\ **Created:** [December 11, 2022, 9:09am UTC](https://forum.flowable.org/t/using-postgres-db-flowable-springboot-base-app/9987 "2022-12-11T09:09:51Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![kyatim](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.flowable.org/kyatim/32/3027_2.png) [@kyatim](https://forum.flowable.org/u/kyatim)\ **Post date:** [December 11, 2022, 9:09am UTC](https://forum.flowable.org/t/using-postgres-db-flowable-springboot-base-app/9987/1 "2022-12-11T09:09:51Z")
I’m trying to use postgresql db with flowable in springboot (2.7.5) based app. I get this error `Caused by: java.lang.RuntimeException: Failed to load driver class org.postgresql.Driver in either of HikariConfig class loader or Thread context classloader` the postgres dependency is added to pom.xml. any idea! thank you. ---
**Author:** ![yvo](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.flowable.org/yvo/32/2231_2.png) [@yvo](https://forum.flowable.org/u/yvo)\ **Post date:** [December 12, 2022, 6:29am UTC](https://forum.flowable.org/t/using-postgres-db-flowable-springboot-base-app/9987/2 "2022-12-12T06:29:32Z")
Hi. Can you share a but more information? For example your configuration and the properties to you use to to configure the datasource. Yvo ---
**Author:** ![kyatim](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.flowable.org/kyatim/32/3027_2.png) [@kyatim](https://forum.flowable.org/u/kyatim)\ **Post date:** [December 12, 2022, 11:25am UTC](https://forum.flowable.org/t/using-postgres-db-flowable-springboot-base-app/9987/3 "2022-12-12T11:25:27Z")
Thank you! i solved this problem by deleting “.m2” directory and recompiling the whole projects. The first time a corrupted driver jar was downloaded. Khalid.