Silent referent is written to a stream having no referent defaults.
#6088 Run-time catchable error
Silent referent is written to a stream having no referent defaults.
Additional Information
For referent 'X'.
where X is the name of the referent.
Explanation
This error occurs when a silent referent has been written to a stream
that gets resolved at end of referent scope and the referent is not defined
(i.e., does not exist on the referents shelf) and no default value is
specified for the stream where the referent has been written.