Type Error in Production Build: Variable 'x' Implicitly Has an 'any[]' Type

[yunesco]

Issue Summary:

When attempting to create an optimized production build using Next.js version 14.0.3, a type error occurs during the linting and type validity check phase. The error specifically points to the file .contentlayer/generated/Hubs/_index.mjs at line 5, indicating a problem with the variable 'allHubs' having an implicitly assigned 'any[]' type.

AllHubs is being generated from a document type called "Hub" using ContentLayer.

Steps to Reproduce:

Use Next.js version 14.0.3.
Include the "next-contentlayer" package with version "^0.3.4".
Attempt to create an optimized production build.

Expected Behavior:

The production build should be created successfully without any linting or type errors.

Actual Behavior:

The build process fails with a type error in the file .contentlayer/generated/Hubs/_index.mjs at line 5, pointing to the variable 'allHubs' having an implicitly assigned 'any[]' type.

Environment:

Next.js version: 14.0.3
Node.js version: 20.9.0
Relevant dependencies: "next-contentlayer": "^0.3.4"

Additional Information:

This issue may be related to the interaction between Next.js version 14.0.3 and the "next-contentlayer" package. The error specifically occurs during the linting and type checking phase, impacting the successful creation of an optimized production build.

Actual Error:

.contentlayer/generated/Hubs/_index.mjs:5:14
Type error: Variable 'allHubs' implicitly has an 'any[]' type.

  3 |
  4 |
> 5 | export const allHubs = []
    |              ^
  6 |

[gustaveWPM]

Hello!
I'm curious.

What does look like your tsconfig.json file?

[yunesco]

The issue was fixed by setting the strict to false in tsconfig.json

{
  "compilerOptions": {
    "esModuleInterop": true,
    "skipLibCheck": true,
    "target": "es2022",
    "allowJs": true,
    "resolveJsonModule": true,
    "moduleDetection": "force",
    "isolatedModules": true,
    "forceConsistentCasingInFileNames": true,
    "strict": false,
    "noUncheckedIndexedAccess": true,
    "checkJs": true,
    "lib": ["dom", "dom.iterable", "ES2022"],
    "noEmit": true,
    "module": "ESNext",
    "moduleResolution": "Bundler",
    "jsx": "preserve",
    "plugins": [{ "name": "next" }],
    "incremental": true,
    "baseUrl": ".",
    "strictNullChecks": true,
    "paths": {
      "@/*": ["./src/*"],
      "@root/*": ["*"],
      "contentlayer/generated": ["./.contentlayer/generated"]
    }
  },
  "include": [
    ".eslintrc.cjs",
    "next-env.d.ts",
    "**/*.ts",
    "**/*.tsx",
    "**/*.cjs",
    "**/*.js",
    ".next/types/**/*.ts",
    ".contentlayer/generated"
  ],
  "exclude": ["node_modules"]
}

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.