GraphQL mutations

I define a graphql mutation. like this;

const DB = {
  Vehicles: {
    create({companyId, plate, imei}) {
      const vehicle = {plate, imei, companyId};
      return Vehicles.insert(vehicle);

const Mutation = new GraphQLObjectType({
  name: 'VehicleMutations',
  description: 'Mutations of vehicles',
  fields: {
    newVehicle: {
      type: Vehicle,
      args: {
        companyId: {type: new GraphQLNonNull(GraphQLString)},
        plate: {type: new GraphQLNonNull(GraphQLString)},
        imei: {type: new GraphQLNonNull(GraphQLString)}
      resolve: (root, args) => {
        return DB.Vehicles.create(args);

when write this mutation in graphql ide, I am getting the following error;

 { data: { newVehicle: null },
   errors: [ { [Error: Can't wait without a fiber] originalError: [Error: Can't wait without a fiber] } ] }

I looked and repos

It sounds like there’s some Meteor.wrapAsync wrapping missing somewhere, but I’m not familiar with what you’re attempting there so I can’t give any more specific comments.