In this blog post, let’s learn about the error message “5549 Map: %2 – Map Data Node – invalid expression ‘%1’. Must be a” in InterSystems Cache & Ensemble and the description of the error message.
Error Message
5549 – Map: %2 – Map Data Node – invalid expression ‘%1’. Must be a
Error Details
Map: %2 – Map Data Node – invalid expression ‘%1’. Must be a {Di} or {iDj} reference.
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