hi wave we are trying to sequence dagster dbt cli runs but w

Question

hi wave we are trying to sequence dagster dbt cli runs but we are hitting a roadblock The input type for the solid is `Nothing` while the output type for the cli run is `DbtCliOutput` This creates a type error when trying to sequence dbt solids Would it be possible to change the input type to `Any` Or is there another pattern you suggest

alex · Answer

Can you share the full error you are seeing You should be able to hook anything in to a `Nothing` input

Alessandro Marrella · Answer

```dagster core errors DagsterInvalidDefinitionError In CompositeSolidDefinition weights v0 experiment input prev of type Any maps to generate weights cbsa weights v0 start after of different type Nothing InputMapping source and destination must have the same type ```

alex · Answer

ahh a composite boundary

alex · Answer

this may be a little cumbersome but can you add a `Nothing` at the composite and then wire it through

Alessandro Marrella · Answer

yeah sorry i should have specified it earlier Ok thanks we ll try that

alex · Answer

``` composite solid def example dbt out DbtCliOutput dbt done Nothing needs data dbt out needs nothing dbt done pipeline def foo cli out = cli run example dbt out=cli out dbt done=cli out ```

sandy · Answer

fyi < owen>

Alessandro Marrella · Answer

that worked thanks I wonder if something can be done to improve the ergonomics of it i e not having to specify nothing at the composite boundary Anyway this gets us unblocked thank you very much