IBM Cognos User Manual page 299

In constructing the data sources for your model, you have created a
measure-containing (transactional) data source that provides only category values
in alternate drill-down paths. However, for measure values to be written to the
PowerCube, they must be associated with the primary drill-down path.
Procedure
Check the scope of the measure by using the Show Scope command. Then
redesign your model or source file for the measure so that the required columns
provide category values for the levels in the primary drill-down path.
TR1502
A data source was expected but not found. Either you have referred to a data
source by an object name or object identifier that Cognos Transformer is unable to
locate, or you have not referenced the data source.
This error occurs when MDL syntax requires an object and is unable to find it. In
this case, the object is a data source.
The problem may be that the data source was not referenced, or that it was
referenced with an incorrect object name or object identifier.
Procedure
You can verify Cognos Transformer object names and identifiers on the Windows
interface. To make them visible, select the Object name and Object identifier
check boxes on the Titles tab of the Preferences property sheet. The object name
and identifier will appear in the title bar at the top of each property sheet, and also
in a tool tip when your pointer hovers over an object.
You can also find object identifiers in the .mdl file. For more information, see the
Cognos Transformer Developer Guide.
TR1503
Choosing the Maximize Data Source Access Speed option may increase processing
speed in some cases but Cognos Transformer will no longer detect multiple
instances of source values in levels marked as Unique. Neither will it do unique
moves.
This message warns you that choosing the Maximize Data Access Speed
optimization option for a data source disables unique moves and uniqueness
error-checking.
Procedure
If you want to retain these capabilities, be sure to select the Verify Category
Uniqueness optimization option. Cognos Transformer can then check to see if the
data is unique in your data source, and enable use of the Unique Move feature for
the data source.
TR1601
Cognos Transformer could not open the model file.
The .py? or .qy?-format file that you are attempting to open is not valid.
Appendix C. IBM Cognos Transformer Error Messages
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