---
title: "No JDBC Driver"
canonical: "https://support.appfire.com/space/SQL/74321750/No%20JDBC%20Driver"
format: markdown
---
> Macro (aura-html)

# Symptoms

One or more SQL Macro returns the following error:

```
org.apache.tomcat.dbcp.dbcp.SQLNestedException:
Cannot load JDBC driver class
Unable to load database driver: org.postgresql.Driver. Make sure your configuration is correct.
Unable to load database driver: net.sourceforge.jtds.jdbc.Driver
```

## Cause

The Data Source is unable to locate your JDBC driver and therefore cannot connect to the database it references. 

## Resolution

**App server:** JDBC driver must be installed in a location that is on the classpath of your application server. For standalone installations, that would be <install-directory>/lib.

**Profile:**** **dbJar must point to the correct location of the JDBC jar file. Try absolute addressing if relative addressing is not working for you (especially if on Windows).