Need some help (Schema must be an instance of GraphQLSchema. Also ensure that there are not multiple versions of GraphQL installed in your node_modules directory.)

[mitroland]

I am trying to use the module but, the result is:

{
"errors": [
{
"message": "Schema must be an instance of GraphQLSchema. Also ensure that there are not multiple versions of GraphQL installed in your node_modules directory."
}
]
}

Query:
{master_tenaga_budaya{nama,no_identitas}}

Log of Schema:

GraphQLSchema {
  _queryType: Query,
  _mutationType: Mutation,
  _subscriptionType: undefined,
  _directives: 
   [ GraphQLDirective {
       name: 'include',
       description: 'Directs the executor to include this field or fragment only when the `if` argument is true.',
       locations: [Array],
       astNode: undefined,
       args: [Array] },
     GraphQLDirective {
       name: 'skip',
       description: 'Directs the executor to skip this field or fragment when the `if` argument is true.',
       locations: [Array],
       astNode: undefined,
       args: [Array] },
     GraphQLDirective {
       name: 'deprecated',
       description: 'Marks an element of a GraphQL schema as no longer supported.',
       locations: [Array],
       astNode: undefined,
       args: [Array] } ],
  astNode: null,
  _typeMap: 
   { Query: Query,
     String: String,
     Node: Node,
     master_lembaga: master_lembaga,
     Int: Int,
     Boolean: Boolean,
     master_tenaga_budaya: master_tenaga_budaya,
     Mutation: Mutation,
     __Schema: __Schema,
     __Type: __Type,
     __TypeKind: __TypeKind,
     __Field: __Field,
     __InputValue: __InputValue,
     __EnumValue: __EnumValue,
     __Directive: __Directive,
     __DirectiveLocation: __DirectiveLocation },
  _implementations: { Node: [ master_lembaga, master_tenaga_budaya ] } }

Model:

module.exports = {
	identity: 'master_tenaga_budaya',
	attributes: {
		doc_id: {type: 'integer', defaultsTo:null},
		nutb: {type: 'string', defaultsTo:null},
		warganegara_indonesia: {type: 'boolean', required: true, defaultsTo: true},
		no_identitas: {type: 'string', unique: true, required: true},
		nama: {type: 'string', required: true},
		tanggal_lahir: {type: 'date', required: true},
		foto: {type: 'string', defaultsTo:null},
		createdAt: {type: 'integer', required: true},
		updatedAt: {type: 'integer', defaultsTo:null},
		revision: {type: 'integer', defaultsTo:0},
		is_deleted: {type: 'boolean', required: true, defaultsTo: false},
		jenis_identitas: {type: 'string', required: true, defaultsTo:'KTP'},
		jenis_kelamin: {type: 'string', enum:['m','f'], defaultsTo:null}
	}
}

Any idea?

[lyzs90]

seems like a graphql-js problem, see: graphql/graphql-js#594

Note that basically you need to only have 1 line result for find node_modules -name graphql

you probably installed another version of graphql and it conflicts with the one in waterline-to-graphql i.e. v0.10.1

[agenthunt]

Hi, Thanks. yes. That seems to be the issue. Havent had time yet to fix this. Might look into in few days. Meanwhile PRs are welcome.