No operations defined in spec! Dynamic mode

Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure the bug has not already been reported

Fastify version

4.3.0

Plugin version

7.4.1

Node.js version

16.16.0

Operating system

Windows

Operating system version (i.e. 20.04, 11.3, 10)

11

Description

My controllers look like below:

export const GroupController = async (fastify: FastifyInstance) => {
  fastify.get(
    "/",
    {
      schema: {
        description: 'Get all Groups in the database',
        summary: 'Get Groups',
        response: { 200: GroupsSchema },
      },
    },
    async (_req: FastifyRequest, reply: FastifyReply) => {
      const groups = await fastify.orm
        .getRepository(Group)
        .createQueryBuilder("Group")
        .getMany();
      return reply.send(groups);
    }
  );

  fastify.post<{ Body: GroupType }>(
    "/",
    { schema: { body: GroupSchema, response: { 201: GroupSchema } } },
    async (_req, reply) => {
      const group = new Group();
      group.name = _req.body.name;
      const result = await fastify.orm.getRepository(Group).save(group);
      return reply.status(201).send(result);
    }
  );
};

And then my schemas are defined using Typebox as such:

import { Static, Type } from '@sinclair/typebox'

export const GroupSchema = Type.Object({
	id: Type.Optional(Type.Number({description: "The id of the group", examples:[1]})),
  name: Type.String({description: "Name of the group", examples:["Test1"]})
})

export const GroupsSchema = Type.Array(GroupSchema);

export type GroupType = Static<typeof GroupSchema>

And then the routes are defined here:

import { FastifyInstance } from "fastify";
import { HealthStatusController } from '../controller/health-status-controller';
import { GroupController } from '../controller/group/group-controller';

export const Router = async(fastify: FastifyInstance) => {
  fastify.register(HealthStatusController, {prefix: '/api/v1/health-status'});
  fastify.register(GroupController, {prefix: '/api/v1/group'});
} 

Finally swagger is registered like this:
 // swagger registration
server.register(fastifySwagger, {
  routePrefix: '/docs',
  swagger: {
    info: {
      title: 'API documentation for IT core Twitter backend',
      description: 'Swagger docs for the API',
      version: '1.0.0'
    },
    schemes: ['http']
  },
  exposeRoute:true
});

But when I open the documentation this is what I see:

No operations defined in spec!

Steps to Reproduce

Create a latest fastify project with latest plugin version in TypeScript. And the routes do not work.

The structure of the project is below - The router and app is in infrastructure folder. Controllers are in controller and the server is at root. Fastify swagger is registered in app.ts

├───controller │ └───group ├───entities ├───infrastrcuture ├───migrations └───schemas

Expected Behavior

Expect the swagger docs to show up.