Answer / guest

Cause: Table SNAP$_<mview_name> reads rows from the view
MVIEW$_<mview_name>, which is a view on the master table
(the master may be at a remote site). Any error in this path
will cause this error at refresh time. For fast refreshes,
the table <master_owner>.MLOG$_<master> is also referenced.

Action: Examine the other messages on the stack to find the
problem. See if the objects SNAP$_<mview_name>,
MVIEW$_<mview_name>, <mowner>.<master>@<dblink>,
<mowner>.MLOG$_<master>@<dblink> still exist.

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