1) I can't seem to get the org.locationtech.udig.catalog.imageio
    project
    to compile.  It it complaining about not being able to import
    org.gdal.gdal. I can't figure this out because it looks like they are
    configured and setup properly in the org.location.udig.libs project.
    Does anybody have any ideas?  I wouldn't put it past being some weird
    eclipse bug.  The errors are all in GDALFormatProvider.java:
    * Driver cannot be resolve to a type
    * gdal cannot be resolve
    * The import org.gdal.gdal.Driver cannot be resolved
    * The import org.gdal.gdal.gdal cannot be resolved.
I saw this kind of issue yesterday as well and was wondering since the 
gdal lib (2.2) is bundled with udig.libs bundle. Looks like its only an 
issue in eclipse.
Please try to update classpath in udig.libs project : Right mouse -> 
plugin-Tools -> Update classpath
Out of curiosity, while working on pull-requests to resolve Eclipse 
Bundles from orbit rather than re-bundleing it in udig.libs 
(https://github.com/locationtech/udig-platform/pull/574 
<https://github.com/locationtech/udig-platform/pull/574> & 
https://github.com/locationtech/udig-platform/pull/573 
<https://github.com/locationtech/udig-platform/pull/573>) I run into the 
same issue, a restart of Eclipse helped here.
Hop that helps ..