Dgo Mutation preds 1-\u0000 error during mutation

Issues Dgraph Clients
5

Is it happening because I am using Graphql schema and have not configured it to suit DQL?
This is my schema in graphql

type Path  {
	id: ID! 
	nodes: [Node] @hasInverse(field:is_in_path) 
	title: String 
	owner: User 
}

And this is the schema shown in Dgraph Schema
image