Can't extend QueryBuilder with existing method ('paginate').

[Matheus Moreira]

I'm getting this error when starting my code:

Error: Can't extend QueryBuilder with existing method('paginate').
at Function.Builder.extend (/apps/api-cantinho-da-limpeza/node_modules/knex/lib/query/querybuilder.js:1756:11)
at Object.extend (/apps/api-cantinho-da-limpeza/node_modules/knex/lib/knex-builder/Knex.js:30:18)
at attachPaginate (/apps/api-cantinho-da-limpeza/node_modules/knex-paginate/lib/index.js:78:21)
at materials (/apps/api-cantinho-da-limpeza/src/routes/materials.ts:7:1)
at Object. (/apps/api-cantinho-da-limpeza/src/routes/materials.ts:9:23)
at Module._compile (node:internal/modules/cjs/loader:1254:14)
at Object.F (/apps/api-cantinho-da-limpeza/node_modules/@esbuild-kit/cjs-loader/dist/index.js:1:941)
at Module.load (node:internal/modules/cjs/loader:1117:32)
at Module._load (node:internal/modules/cjs/loader:958:12)
at Module.require (node:internal/modules/cjs/loader:1141:19)

I made the imports and stationed in the way specified in the documentation
``
import { FastifyInstance } from "fastify";
import { z } from "zod";
import { knex } from "../database"
import crypto from "node:crypto";
import { attachPaginate } from 'knex-paginate'

attachPaginate();

``

I'm using these dependencies:
"dependencies": {
"dotenv": "^16.0.3",
"fastify": "^4.14.1",
"knex": "^2.4.2",
"knex-paginate": "^3.1.0",
"pg": "^8.10.0",
"zod": "^3.21.4"
},

[Felix Mosheev]

Hi @MoreiraTv , this error happens if you are trying to extend the query builder with something that already exists.

You need to call to attachPagination only once in a project (usually in the place you configure your db connection)
If you don't know where it comes from... You can wrap each usage of attachPagination with an if that checks if paginate doesn't exists, add it otherwise do nothing.

I had the same issue with in my test suite, in my case I've moved the call to attachPaginate to tests setup

[Matheus Moreira]

Thanks for the horientation I made the change to my connection configuration file, really I was calling in two places.