InterSystems Cache & Ensemble Error 6657 – Cannot project %1 because method %2 has abstract stream in r

Posted by AbundantCode

In this blog post, let’s learn about the error message “6657 Cannot project %1 because method %2 has abstract stream in r” in InterSystems Cache & Ensemble and the description of the error message.

Error Message

6657 – Cannot project %1 because method %2 has abstract stream in r

Error Details

Cannot project %1 because method %2 has abstract stream in return type or argument type.