# Query root type must be provided error

**URL:** <https://community.apollographql.com/t/query-root-type-must-be-provided-error/5379>\
**Category:** Server\
**Tags:** server\
**Created:** [January 4, 2023, 8:58pm UTC](https://community.apollographql.com/t/query-root-type-must-be-provided-error/5379 "2023-01-04T20:58:31Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Ennio\_Bozzetti](https://sea1.discourse-cdn.com/flex019/user_avatar/community.apollographql.com/ennio_bozzetti/32/3576_2.png) [@Ennio\_Bozzetti](https://community.apollographql.com/u/Ennio_Bozzetti)\
**Post date:** [January 4, 2023, 8:58pm UTC](https://community.apollographql.com/t/query-root-type-must-be-provided-error/5379/1 "2023-01-04T20:58:31Z")

</div>

I have a nodeJS Apollo server and the server is working fine when I run in development mode. But when I use webpack to build for production I get the following error.

```auto
Error: Query root type must be provided.
    at Un (C:\xxxxxx\dist\index.js:2:1612273)
    at Function.generateSchemaDerivedData (C:\xxxxxx\dist\index.js:2:1248625)
    at Object.schemaDerivedDataProvider (C:\xxxxxx\dist\index.js:2:1243311)
    at new t.SchemaManager (C:\xxxxxx\dist\index.js:2:1323703)
    at new N (C:\xxxxxx\dist\index.js:2:1243228)
    at Object.63607 (C:\xxxxxx\dist\index.js:2:1138699)
    at __webpack_require__ (C:\xxxxxx\dist\index.js:2:2367097)
    at C:\xxxxxx\dist\index.js:2:2368032
    at Object.<anonymous> (C:\xxxxxx\dist\index.js:2:2368060)
    at Module._compile (node:internal/modules/cjs/loader:1105:14)

```

I have a basic webpack setup:

```auto
const path = require('path');

module.exports = {
    entry: './src/index.ts',
    mode: 'development',
    module: {
      rules: [
        {
          test: /\.tsx?$/,
          use: 'ts-loader',
          exclude: /node_modules/,
        },
      ],
    },
    resolve: {
      extensions: ['.tsx', '.ts', '.js', '.mjs'],
    },
    output: {
      filename: 'index.js',
      path: path.resolve(__dirname, 'dist'),
    },
    target: 'node',
    optimization: {
        usedExports: true,
    }
  };

```

Here is a screen shot of my schema.

 ![image](https://us1.discourse-cdn.com/flex019/uploads/apollographql/original/2X/5/52e7f68c6024bc6c4215843cd5a66eebaeac05df.png)