ESM: Cannot find module './index.js' and requiring "imaginaryUncacheableRequireResolveScript"

[flleeppyy]

Search Terms

If I try to run the script src/index.ts, it results in this error

TypeError [ERR_UNKNOWN_FILE_EXTENSION]: Unknown file extension ".ts" for /home/chen/development/relatrack-backend/src/index.ts
    at Object.getFileProtocolModuleFormat [as file:] (node:internal/modules/esm/get_format:160:9)
    at defaultGetFormat (node:internal/modules/esm/get_format:203:36)
    at defaultLoad (node:internal/modules/esm/load:141:22)
    at async nextLoad (node:internal/modules/esm/hooks:865:22)
    at async nextLoad (node:internal/modules/esm/hooks:865:22)
    at async Hooks.load (node:internal/modules/esm/hooks:448:20)
    at async MessagePort.handleMessage (node:internal/modules/esm/worker:196:18) {
  code: 'ERR_UNKNOWN_FILE_EXTENSION'
}

But if I run the script with script/index.js, I get this error

node:internal/modules/cjs/loader:1147
  throw err;
  ^

Error: Cannot find module './index.js'
Require stack:
- /home/chen/development/relatrack-backend/src/imaginaryUncacheableRequireResolveScript
    at Module._resolveFilename (node:internal/modules/cjs/loader:1144:15)
    at Function.resolve (node:internal/modules/helpers:187:19)
    at requireResolveNonCached (/home/chen/development/relatrack-backend/node_modules/.pnpm/ts-node@10.9.2_@types+node@20.10.5_typescript@5.3.3/node_modules/ts-node/dist/bin.js:550:16)
    at getProjectSearchDir (/home/chen/development/relatrack-backend/node_modules/.pnpm/ts-node@10.9.2_@types+node@20.10.5_typescript@5.3.3/node_modules/ts-node/dist/bin.js:519:40)
    at phase3 (/home/chen/development/relatrack-backend/node_modules/.pnpm/ts-node@10.9.2_@types+node@20.10.5_typescript@5.3.3/node_modules/ts-node/dist/bin.js:267:27)
    at bootstrap (/home/chen/development/relatrack-backend/node_modules/.pnpm/ts-node@10.9.2_@types+node@20.10.5_typescript@5.3.3/node_modules/ts-node/dist/bin.js:47:30)
    at main (/home/chen/development/relatrack-backend/node_modules/.pnpm/ts-node@10.9.2_@types+node@20.10.5_typescript@5.3.3/node_modules/ts-node/dist/bin.js:33:12)
    at Object.<anonymous> (/home/chen/development/relatrack-backend/node_modules/.pnpm/ts-node@10.9.2_@types+node@20.10.5_typescript@5.3.3/node_modules/ts-node/dist/bin.js:580:5)
    at Module._compile (node:internal/modules/cjs/loader:1376:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1435:10) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/home/chen/development/relatrack-backend/src/imaginaryUncacheableRequireResolveScript'
  ]
}

Node.js v20.10.0

No where am I importing "imaginaryUncacheableRequireResolveScript" and looking that up on Google yields nothing.

Expected Behavior

It runs my code with either of the file extensions I provide

Actual Behavior

The errors above.

Steps to reproduce the problem

running pnpm/npm ts-node src/index.js with my tsconfig (making sure tpye is set to module in package.json)

Minimal reproduction

https://github.com/flleeppyy/ts-node-repros
TypeStrong/ts-node-repros#37

Specifications

ts-node v10.9.2
node v20.10.0
compiler v5.3.3

• tsconfig.json, if you're using one:

{
  "compilerOptions": {
    "allowJs": false,
    "allowSyntheticDefaultImports": true,
    "allowArbitraryExtensions": true,
    "alwaysStrict": true,
    "baseUrl": ".",
    "checkJs": false,
    "downlevelIteration": true,
    "declaration": false,
    "emitDecoratorMetadata": true,
    "esModuleInterop": true,
    "experimentalDecorators": true,
    "importHelpers": true,
    "incremental": true,
    "inlineSources": false,
    "isolatedModules": true,
    "jsx": "preserve",
    "lib": ["ES2023"],
    "module": "NodeNext",
    // "moduleResolution": "Node",
    "noEmit": false,
    "noEmitHelpers": true,
    "noEmitOnError": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitAny": true,
    "noImplicitReturns": false,
    "noImplicitThis": true,
    "noUnusedLocals": false,
    "noUnusedParameters": false,
    "outDir": "./dist",
    "pretty": true,
    "removeComments": true,
    "resolvePackageJsonImports": true,
    "resolvePackageJsonExports": true,
    "resolveJsonModule": true,
    "skipLibCheck": true,
    "sourceMap": true,
    "strict": true,
    "strictBindCallApply": true,
    "strictFunctionTypes": false,
    "strictNullChecks": true,
    "strictPropertyInitialization": true,
    "suppressImplicitAnyIndexErrors": false,
    "target": "ES2020",
    "verbatimModuleSyntax": true,
    "useDefineForClassFields": true
  },
  "ts-node": {
    "experimentalSpecifierResolution": "node",
    "transpileOnly": true,
    "esm": true
  }
}

• package.json:

{
  "name": "relatrack-backend",
  "version": "1.0.0",
  "description": "Backend to Relatrack, an inventory solution.",
  "main": "src/index.ts",
  "type": "module",
  "scripts": {
    "dev": "nodemon src/index.js",
    "start": "cd dist && node index.js",
    "build": "tsc",
    "lint": "eslint . --ext .js,.ts --fix --ignore-path .gitignore && prettier --write --ignore-path .gitignore .",
    "db:genschema": "cross-env node --no-warnings --loader ts-node/esm -r ts-node/register ./src/utils/dbSchemaParser.ts"
  },
  "engines": {
    "node": ">=20.6.0",
    "pnpm": ">=8.0.0"
  },
  "keywords": [],
  "author": {
    "name": "Chen Jinkerson",
    "email": "flleeppyybusiness@gmail.com",
    "url": "https://fleepy.tv"
  },
  "license": "MIT",
  "dependencies": {
    "@fastify/cors": "^8.5.0",
    "@fastify/helmet": "^11.1.1",
    "@fastify/multipart": "^8.0.0",
    "@typescript-eslint/types": "^6.15.0",
    "ajv": "^8.12.0",
    "ajv-keywords": "^5.1.0",
    "bcryptjs": "^2.4.3",
    "better-sqlite3": "^9.2.2",
    "cross-env": "^7.0.3",
    "dotenv": "^16.3.1",
    "fastify": "^4.25.1",
    "fastify-plugin": "^4.5.1",
    "image-size": "^1.0.2",
    "jose": "^5.1.3",
    "json-schema-to-typescript": "^13.1.1",
    "jsonwebtoken": "^8.5.1",
    "knex": "^2.5.1",
    "pino": "^8.17.1",
    "pino-pretty": "^10.3.0",
    "sqlite3": "^5.1.6",
    "ts-node": "^10.9.2",
    "tslib": "^2.6.2"
  },
  "devDependencies": {
    "@espimarisa/eslint-config": "^4.2.0",
    "@types/bcryptjs": "^2.4.6",
    "@types/jsonwebtoken": "^8.5.9",
    "@types/node": "^20.10.5",
    "@typescript-eslint/eslint-plugin": "^6.15.0",
    "@typescript-eslint/parser": "^6.15.0",
    "@typescript-eslint/typescript-estree": "^6.15.0",
    "eslint": "^8.56.0",
    "eslint-config-prettier": "^9.1.0",
    "eslint-import-resolver-typescript": "^3.6.1",
    "eslint-plugin-import": "^2.29.1",
    "eslint-plugin-node": "^11.1.0",
    "eslint-plugin-prettier": "^5.0.1",
    "eslint-plugin-unicorn": "^49.0.0",
    "nodemon": "^3.0.2",
    "prettier": "^3.1.1",
    "typescript": "^5.3.3"
  }
}

• Operating system and version: Ubuntu 23.10 x86_64

[kira0x1]

i have this issue as well :/ really frustrating only workaround i got is

node --no-warnings=ExperimentalWarning --loader ts-node/esm ./someDirectory/index.ts

[cultron]

FWIW - I ran into this issue just now and after banging my head against the wall for about 30 minutes, I realized the file I was calling fell under a pattern in my .gitignore file so it wasn't pulling into the build server I was running on. Dumb mistake on my part but my be an easy issue to overlook.

[meotimdihia]

try to use tsx instead. It works flawlessly for me.