[ERR_PACKAGE_PATH_NOT_EXPORTED]: Package subpath './dist/llms' is not defined by "exports"

[jakewallin82]

I know this has to do with the ESM. I'm building a React/Typescript + Express app.

If you could please point me to a resource to figure out how to fix the issue, I would really appreciate it.

[irl-dan]

Also running into this.

In my case:

Error: Package subpath './chains' is not defined by "exports" in /Users/.../my-project/node_modules/langchain/package.json

But indeed when I check the node_modules/langchain/package.json I can see it in there:

  "exports": {
// ...
    "./chains": {
      "types": "./chains.d.ts",
      "import": "./chains.js"
    },
// ...
}

[ImenKedir]

I am having the same issue.

Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: Package subpath './llms' is not defined by "exports" in /Users/.../project/node_modules/langchain/package.json

[jcoc611]

Running into this as well. Seems that the problem is that package.json is missing CommonJS "require": "foo.js" under the exports subpaths, so it isn't possible to import them from CommonJS?

[Rolilink]

Having the same issue, I am using nx and typescript in my project:

tsconfig:

{
  "extends": "./tsconfig.json",
  "compilerOptions": {
    "outDir": "../../dist/out-tsc",
    "module": "commonjs",
    "types": ["node"]
  },
  "exclude": ["jest.config.ts", "src/**/*.spec.ts", "src/**/*.test.ts"],
  "include": ["src/**/*.ts"]
}

Webpack config:

{
  context: '/Users/rolilink/Dev/Hirai/apps/hirai-graph-server',
  target: 'node',
  node: false,
  mode: 'development',
  devtool: 'source-map',
  entry: {
    main: [ '/Users/rolilink/Dev/Hirai/apps/hirai-graph-server/src/main.ts' ]
  },
  output: {
    libraryTarget: 'commonjs',
    path: '/Users/rolilink/Dev/Hirai/dist/apps/hirai-graph-server',
    filename: '[name].js',
    chunkFilename: '[name].js',
    hashFunction: 'xxhash64',
    pathinfo: false,
    scriptType: 'module'
  },
  watch: true,
  watchOptions: { poll: undefined },
  profile: false,
  resolve: {
    extensions: [ '.ts', '.tsx', '.mjs', '.js', '.jsx' ],
    alias: {},
    plugins: [ [TsconfigPathsPlugin] ],
    mainFields: [ 'main', 'module' ]
  },
  externals: [ [Function (anonymous)] ],
  optimization: {
    sideEffects: true,
    minimize: false,
    minimizer: [ [TerserPlugin] ],
    runtimeChunk: false,
    concatenateModules: true
  },
  performance: { hints: false },
  experiments: { cacheUnaffected: true },
  ignoreWarnings: [ [Function (anonymous)] ],
  module: {
    unsafeCache: true,
    rules: [ [Object], [Object], [Object], [Object] ]
  },
  plugins: [
    ForkTsCheckerWebpackPlugin { options: [Object] },
    CopyPlugin { patterns: [Array], options: {} }
  ],
  stats: {
    hash: true,
    timings: false,
    cached: false,
    cachedAssets: false,
    modules: false,
    warnings: true,
    errors: true,
    colors: true,
    chunks: true,
    assets: false,
    chunkOrigins: false,
    chunkModules: false,
    children: false,
    reasons: false,
    version: false,
    errorDetails: false,
    moduleTrace: false,
    usedExports: false
  }
}

[irl-dan]

I'm realizing this is the wrong repository for this issue. Linking to the correct issue here:

langchain-ai/langchainjs#185

[dosubot]

Hi, @jakewallin82! I'm Dosu, and I'm here to help the LangChain team manage their backlog. I wanted to let you know that we are marking this issue as stale.

From what I understand, you encountered an error related to ESM (ECMAScript Modules) in a React/Typescript + Express app. You were seeking guidance or resources to resolve the issue. Other users have also reported encountering the same error and have provided additional information and suggestions. One user suggested that the problem may be due to missing CommonJS require statements in the package.json file. Another user shared their project's tsconfig and Webpack configuration.

However, it seems that the issue is still unresolved. Before we proceed, we would like to confirm if this issue is still relevant to the latest version of the LangChain repository. If it is, please let us know by commenting on this issue. Otherwise, feel free to close the issue yourself, or it will be automatically closed in 7 days.

Thank you for your understanding, and we look forward to hearing from you soon!

Best regards,
Dosu

[OmarKhattab]

Hi, @jakewallin82! I'm Dosu, and I'm here to help the LangChain team manage their backlog. I wanted to let you know that we are marking this issue as stale.

From what I understand, you encountered an error related to ESM (ECMAScript Modules) in a React/Typescript + Express app. You were seeking guidance or resources to resolve the issue. Other users have also reported encountering the same error and have provided additional information and suggestions. One user suggested that the problem may be due to missing CommonJS require statements in the package.json file. Another user shared their project's tsconfig and Webpack configuration.

However, it seems that the issue is still unresolved. Before we proceed, we would like to confirm if this issue is still relevant to the latest version of the LangChain repository. If it is, please let us know by commenting on this issue. Otherwise, feel free to close the issue yourself, or it will be automatically closed in 7 days.

Thank you for your understanding, and we look forward to hearing from you soon!

Best regards, Dosu

This is still an issue

[a-box31]

check the directory of the langchain model in here at langchain.js. Usually the extension is from the community section of their API.

so npm install @lanchain/community

then in the import, using es6 modules in the package.json, run the following

import { YOUR_FUNCTION } from @langchain/community/llms/{YOUR_MODEL}