Hi Carla,
I think you're using the ant included with your OS, rather than the ant included with the lams package. That's OK, but it needs to know where to find the mysql jar.
One way to do this is to include it as an argument to ant, as Luke said:
ant -lib /path/to/lams/package/ant/lib install
Or, copy the mysql jar to /usr/share/java (as that seems to be where your copy of ant has its libraries):
cp /path/to/lams/package/ant/lib/mysql-connector-java-3.12-bin.jar /usr/share/java
Posted by Jun-Dir Liew