"Cannot find package" when running mocha and importing between packages in monorepo

Search Terms

I think this is similar or related to https://github.com/TypeStrong/ts-node/issues/2031 and https://github.com/TypeStrong/ts-node/issues/2023 but not sure.

Expected Behavior

When running mocha and pulling in modules from between packages they should resolve and be found when a test runs.

Actual Behavior

When a test script runs a function that itself imports a variable (or anything) from a another package in the monorepo, the variable is not resolved.

Error: Cannot find package 'packages' imported from C:\Users\AliceHerbison\import-error\packages\extra1\functions\exampleFunction.ts
    at packageResolve (C:\Users\AliceHerbison\import-error\node_modules\ts-node\dist-raw\node-internal-modules-esm-resolve.js:757:9)
    at moduleResolve (C:\Users\AliceHerbison\import-error\node_modules\ts-node\dist-raw\node-internal-modules-esm-resolve.js:798:18)
    at Object.defaultResolve (C:\Users\AliceHerbison\import-error\node_modules\ts-node\dist-raw\node-internal-modules-esm-resolve.js:912:11)
    at C:\Users\AliceHerbison\import-error\node_modules\ts-node\src\esm.ts:218:35
    at entrypointFallback (C:\Users\AliceHerbison\import-error\node_modules\ts-node\src\esm.ts:168:34)
    at C:\Users\AliceHerbison\import-error\node_modules\ts-node\src\esm.ts:217:14
    at addShortCircuitFlag (C:\Users\AliceHerbison\import-error\node_modules\ts-node\src\esm.ts:409:21)
    at resolve (C:\Users\AliceHerbison\import-error\node_modules\ts-node\src\esm.ts:197:12)
    at nextResolve (node:internal/modules/esm/loader:163:28)
    at ESMLoader.resolve (node:internal/modules/esm/loader:838:30)
    at ESMLoader.getModuleJob (node:internal/modules/esm/loader:424:18)
    at ModuleWrap.<anonymous> (node:internal/modules/esm/module_job:77:40)
    at link (node:internal/modules/esm/module_job:76:36)

Steps to reproduce the problem

yarn
yarn test

Minimal reproduction

This is a minimal reproduction using the same setup and folder structure for our corporate monorepo. The example functions and tests are basic but illustrate exactly the same concept - https://github.com/alicegherbison/import-error

Specifications

ts-node version: ^10.9.2
node version: 18.16.1
TypeScript version: 5.3.3

tsconfig.json, if you're using one:


{
"compileOnSave": false,
"compilerOptions": {
"allowJs": true,
"allowSyntheticDefaultImports": true,
"alwaysStrict": true,
"baseUrl": ".",
"checkJs": true,
"declaration": false,
"esModuleInterop": true,
"importsNotUsedAsValues": "error",
"incremental": true,
"isolatedModules": false,
"jsx": "react-jsx",
"lib": ["dom", "dom.iterable", "ES2019"],
"module": "ES2020",
"moduleResolution": "node",
"noEmit": true,
"noImplicitAny": true,
"noImplicitReturns": false,
"noImplicitThis": true,
"noUnusedLocals": true,
"noUnusedParameters": true,
"outDir": "dist",
"paths": {
  "public": ["public/"]
},
"plugins": [
  {
    "name": "typescript-plugin-css-modules",
    "options": {
      "customMatcher": "\\.scss$"
    }
  }
],
"pretty": true,
"resolveJsonModule": true,
"skipLibCheck": true,
"sourceMap": true,
"strictNullChecks": false,
"target": "ES2019",
"rootDirs": ["packages"]
},
"include": ["packages/**/*", "./**/*.ts", "**/*.tsx", "**/*.mdx"],
"exclude": ["node_modules/", ".yarn/"],
"ts-node": {
"esm": true,
"experimentalSpecifierResolution": "node",
"require": ["tsconfig-paths/register", "ts-node/register"]
}
}

* package.json:

{ "name": "import-error", "packageManager": "yarn@3.6.1", "workspaces": [ "packages/*" ], "dependencies": { "@mdx-js/loader": "^3.0.0", "eslint-mdx": "^3.0.0", "eslint-plugin-mdx": "^3.0.0", "jsdom-global": "^3.0.2", "react": "17.0.2", "react-dom": "17.0.2", "react-redux": "7.2.9", "react-router": "6.20.1", "react-router-dom": "6.20.1", "react-router-hash-link": "^2.4.3", "redux": "4.2.1", "rehype-external-links": "2.0.1", "rehype-react": "7.1.1", "source-map-support": "^0.5.21", "ts-node": "^10.9.2", "tsconfig-paths": "^4.2.0" }, "devDependencies": { "@testing-library/react": "14.1.2", "@types/chai": "4.3.11", "@types/chai-dom": "1.11.3", "@types/mocha": "10.0.6", "@types/node": "20.10.4", "@types/react": "17.0.71", "@types/react-dom": "17.0.25", "@types/react-router-dom": "5.3.3", "@typescript-eslint/eslint-plugin": "6.14.0", "@typescript-eslint/parser": "6.14.0", "chai": "5.0.0", "chai-dom": "1.12.0", "cross-env": "7.0.3", "css-loader": "6.8.1", "css-minimizer-webpack-plugin": "5.0.1", "cssnano": "6.0.1", "eslint": "8.55.0", "eslint-config-prettier": "9.1.0", "eslint-plugin-css-modules": "2.12.0", "eslint-plugin-react": "7.33.2", "eslint-plugin-react-hooks": "4.6.0", "eslint-plugin-storybook": "^0.6.15", "fork-ts-checker-webpack-plugin": "9.0.2", "global-jsdom": "9.2.0", "jsdom": "23.0.1", "lint-staged": "15.2.0", "mocha": "10.2.0", "node-abi": "3.52.0", "node-gyp": "10.0.1", "node-loader": "2.0.0", "npm-run-all": "4.1.5", "postcss": "8.4.32", "postcss-loader": "7.3.3", "postcss-scss": "4.0.9", "prettier": "3.1.1", "sass": "1.69.5", "sass-loader": "13.3.2", "semver": "^7.5.4", "style-loader": "3.3.3", "typescript": "5.3.3", "typescript-plugin-css-modules": "5.0.2", "webpack": "5.74.0", "webpack-bundle-analyzer": "4.10.1", "webpack-cli": "5.1.4", "webpack-dev-server": "4.15.1", "webpack-merge": "5.10.0", "workbox-webpack-plugin": "7.0.0" }, "engines": { "node": ">=16" }, "scripts": { "test": "cross-env TS_NODE_FILES=true TS_NODE_BASEURL=. TS_NODE_PROJECT=tsconfig.json mocha --enable-source-maps" }, "type": "module" }


* Operating system and version: Windows 10

This is my first issue raised here - can provide more details if needed. Any help is much appreciated, as have tried what feels like every solution regarding tsconfig-paths/register, path mapping etc to no avail.

TypeStrong / ts-node