Cannot read property 'after' of undefined in implementing react-relay
问题 In my nodejs application here is my schema.js file import { GraphQLBoolean, GraphQLID, GraphQLInt, GraphQLList, GraphQLNonNull, GraphQLObjectType, GraphQLSchema, GraphQLString, } from 'graphql'; import { connectionArgs, connectionDefinitions, connectionFromArray, connectionFromPromisedArray, cursorForObjectInConnection, fromGlobalId, globalIdField, mutationWithClientMutationId, nodeDefinitions, toGlobalId, } from 'graphql-relay'; import { User, getUser, getPosts, createpost, } from '../data