HPCC-12097 Echo ECL Watch build errors to console

Fixes HPCC-12097

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Merge pull request #6352 from GordonSmith/HPCC-12097

HPCC-12097 Echo ECL Watch build errors to console

Reviewed-By: Xiaoming Wang <xiaoming.wang@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>