---
title: "Class Not Found"
canonical: "https://support.appfire.com/space/SQL/74321817/Class%20Not%20Found"
format: markdown
---
> Macro (aura-html)

# Symptoms

One or more SQL Macro returns the following error:

```
java.lang.ClassNotFoundException:
org.apache.commons.dbcp.BasicDataSourceFactory
```

## Cause

<span style="color: #333333">After upgrading Confluence or your application server, this error can occur if your data source configuration is out of date. </span>

## Resolution

<span style="color: #333333">Look for something like </span>**factory="org.apache.commons.dbcp.BasicDataSourceFactory"**<span style="color: #333333"> in your server.xml. Either remove it or rename it to </span>**factory="org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory"**.