MUCH Better! I now have only 44 errors, all of them:
"The specified version does not have the correct format (major.minor.micro.qualifier) or contains invalid characters"
and seem to be references to
in various feature.xml files.
I also got a build error which I see is attributed to an Eclipse issue:
Errors occurred during the build.
Errors running builder 'Plug-in Manifest Builder' on project 'ldapbrowser.ui'.