I received advice on this list from James Masanz to add a couple things to 
AggregatePlainTextUMLSProcessor.xml, in order to add a CSV dictionary lookup to 
my cTAKES processing. I chose to instead make a copy of 
AggregatePlainTextUMLSProcessor.xml with the additions, and pointed Run > Load 
AE at that new file. This resulted in a quite uninformative run-time error 
which I reported but no-one has offered any suggestions on.

I’ve now set up Eclipse with all the needed plugins and cTAKES files – a 
challenge in itself – in order to try to isolate the problem somewhat. The 
error seems to occur in the 2nd invocation of 
DictionaryLookupAnnotator.configInit(), with the complaint while processing
…\workspace\ctakes\ctakes-dictionary-lookup-res\target\classes\org\apache\ctakes\dictionary\lookup\LookupDesc_Db.xml
that it is “Unable to find external resource with key:DbConnection”.

Digging a bit further, it looks like the 1st time it constructs a QualifiedName 
it constructs  “/DictionaryLookupAnnotatorDB/DbConnection” which it is able to 
find, but the 2nd time it constructs “/DictionaryLookupAnnotator/DbConnection” 
which it is not. This second time is due to the recommended addition of
    <delegateAnalysisEngine key="DictionaryLookupAnnotator">
      <import 
location="../../../ctakes-dictionary-lookup/desc/analysis_engine/DictionaryLookupAnnotatorCSV.xml"/>
    </delegateAnalysisEngine>

in the AE file.

Please advise.

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