Error when generating graphql files

[bastianhilton]

I keep getting this error when I run the command below, any ideas on what is happening.
npx graphback generate
Generation failed: Error:
Unable to find any GraphQL type definitions for the following pointers:

      - C:\Users\sehilton\Documents\github\alternatecms\packages\core\api\schema.graphql
      </b>

This is an example type in my generated-schema.graphql file:

type Agreements {
content: String
created: DateTime
excerpt: String
id: BigInt!
image: String
mediamanager: String
name: String
reference_id: String
shop_id: String
type: String
updated: DateTime
user_id: String
}