Diagnosis
The InfoSet based on the DataSource contains structures. You cannot useInfoSets that contain structures in generic extraction.

Procedure
Delete the structure(s) from the InfoSet and use additional fieldsinstead.
You can define several additional fields and insert the access codingyou used for the additional structure into the first additional field.Set the sequence of the coding sections in the InfoSet for this fieldto 1 and for all other additional fields to 2. The other additionalfields can then use the results and filled structures from the firstadditional fields. Note that additional fields must be related with'like' for dictionary fields.
An internal error occurs if you have not used any additionalstructure(s).