source column definition missing

[Rafal1234]

Hi,

I'm learning SAS Olap Studio and I want to create a simple OLAP Studio. I have defined a fact table, a single dimensions and used a wizard with "star schema" or "detail table" option to build a cube. Unfortunately I can't build physical cube because of errors. When I choose "star schema" I get:

    ERROR: A source column definition for "sale_priceSUM" is missing from the metadata repository. 

    It may have been deleted.

    ERROR: A cube metadata error occurred.

When the latter I get:

    ERROR: A source column definition for "data_wystaw" is missing from the metadata repository.  It may

    have been deleted.

    ERROR: A cube metadata error occurred.

What may by the possible reasons for these errors?

Forgive me if it's a silly question but I couldn't find it in Google or forums.

Thanks,

Rafael