Prisma

hi there, i am new to prisma and i am using v2. we are just getting started. and i have an issue which does not make sense to me.
I want to create a new item which has a relation to an entity called brand. When i do want to create an item i get the following error message:
```Unknown arg `brand_id` in data.brand_id for type ....CreateInput. Did you mean `brands`?```
while my schema and my model clearly has the member `brand_id` . I know there is an alternative method with using `connect` though i actually don’t want to use it. als the TS typing shows an XOR between these two variants.
Any clues?

Ok. i had another relation, which was required, though not provided. Had to change the db column to nullable. The error message is a little bit misleading.