Looks like Wonder binaries and Wonder Source didn't play well together.
So I deleted all the binaries and imported the couple dozen I needed.
That solved the ERXKeyFilter issue and it now works great in development.
BUT,
When I run a build it still gives me:
BUILD FAILED
/Users/jcicenia/Documents/workspace/BlessingsApp/build.xml:212: The framework name 'ERCoolComponents' does not exist.