Could not open information link. An Internal Error has occurred. "com.spotfire.ws.dat.OperatorException: Multiple values not allowed without aggregation."

Could not open information link. An Internal Error has occurred. "com.spotfire.ws.dat.OperatorException: Multiple values not allowed without aggregation."

The "Multiple values not allowed without aggregation" exception reported in the stack trace typically indicates that the information link has a conditioning pivot whose "Other columns" field includes at least one column with an aggregation method of "None", and the pivot's "slicing" of that column results in multiple distinct values for each of its cells, so that aggregation is necessary. In some situations, the "None" aggregation method will be changed behind the scenes to an aggregation method of "First", and this will show up in the "Edit > Column Properties" dialog as an entry of "First" for that column's "Pivot.AggregationMethod" property. In other situations, the "None" aggregation is retained, and the error message and exception reported are returned.

Resolution

The way to fix this is to select an aggregation method other than "None" for such columns, when defining the information link's conditioning pivot.