A relation in graphcool makes fail the deploy for no reason

Question

I created this relation in my graphcool

 type User @model {
   id: ID! @isUnique
   location: Location! @relation(name: "UserLocation")
  }

 type Location @model {
   id: ID! @isUnique
   lat: Int
   lng: Int
   User: User! @relation(name: "UserLocation”)
 }

Before location was a String, but now I wanted it to be an object so I created this relation, so that I can then use nested mutations. When I deploy I get this error:

There are issues with the new service definition:

Global
  ✖ None.get

I googled, looked on the documentation but I cannot understand what I am doing wrong, is a simple relation.

Answer 1

Faced issues like this when changing the type of fields as well. Not sure what the reason for this behavior (looks like it's a graphcool issue) but to solve them you can split it into two steps:

1) remove this relation from graphcool schema:

type User @model {
   id: ID! @isUnique
   # location: Location! @relation(name: "UserLocation")
  }

 type Location @model {
   id: ID! @isUnique
   lat: Int
   lng: Int
   # User: User! @relation(name: "UserLocation”)
 }

2) revert relation fields with the new type:

type User @model {
   id: ID! @isUnique
   location: Location! @relation(name: "UserLocation")
  }

 type Location @model {
   id: ID! @isUnique
   lat: Int
   lng: Int
   User: User! @relation(name: "UserLocation”)
 }