Ant fails with liquibase path

Question

I am trying to get phing to work nice with liquibase. But pPing gives this illustrous error (which I honestly can't find online)

Execution of target "update-database" failed for the following reason: PathElement (unknown) doesn't support the 'location' attribute.

BUILD FAILED
PathElement (unknown) doesn't support the 'location' attribute.
Total time: 0.1206 seconds

the specific commands for that are:

<path id="liquibasepath">
  <pathelement location="${basedir}/install/lib/liquibase.jar" />
  <pathelement location="${basedir}/install/lib/jdbc-mysql.jar" />
</path>

I tried searching online but there is no good documentation for using phing with liquibase. and the error's neither turn up decent results.