Cannot extend type "Workhsop" because it does not exist in the existing schema. about json-graphql-server HOT 2 CLOSED

exports = {
   workshops: [
       {
           id: 1,
           name: "Conversation",
           description:
             "El alumno se expresa oralmente utilizando las funciones comunicativas y vocabulario adquirido, mejorar la fluidez, y perder el temor a hablar.",
       },
       {
           id: 2,
           name: "TOEFL Preparation",
           description:
             "Ayuda a desarrollar habilidades para el examen de certificación, a partir del dominio ya adquirido del idioma. Duracion: 1 mes.",
       }
   **],**
   options: [
       {
           id: 1,
           teacher: "alondra",
           time: "13:00 - 14:00",
           day: "lunes",
           workshop_id: 1,
       },
       {
           id: 2,
           teacher: "gonzalo",
           time: "14:00 - 15:00",
           day: "lunes",
           workshop_id: 1,
       },
       {
           id: 11,
           teacher: "carlos",
           time: "12:00 - 13:00",
           day: "lunes",
           workshop_id: 2,
       },
   ],
};