# Not able to define combinatorial and attributed schemas separetly

**URL:** <https://discourse.julialang.org/t/not-able-to-define-combinatorial-and-attributed-schemas-separetly/97630>\
**Category:** General Usage\
**Tags:** question\
**Created:** [April 18, 2023, 8:33pm UTC](https://discourse.julialang.org/t/not-able-to-define-combinatorial-and-attributed-schemas-separetly/97630 "2023-04-18T20:33:48Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Nobel\_Chowdary](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/nobel_chowdary/32/45850_2.png) [@Nobel\_Chowdary](https://discourse.julialang.org/u/Nobel_Chowdary)\
**Post date:** [April 18, 2023, 8:33pm UTC](https://discourse.julialang.org/t/not-able-to-define-combinatorial-and-attributed-schemas-separetly/97630/1 "2023-04-18T20:33:48Z")

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The following image shows the definition of schema separately. But when the combinatorial schema is inherited from an attributed schema, it is throwing an error. Can someone help me with this?

 ![image](https://global.discourse-cdn.com/julialang/original/3X/c/f/cfc0d4d14afada0381bc4628b0a489851b76218e.png)