How do I ensure Rollup includes a dependency from another package during TypeScript transpilation in a Lerna monorepo?

How can I configure Rollup to ensure that it includes a dependency from another package during TypeScript transpilation within a Lerna monorepo, while maintaining proper module resolution and avoiding any potential build errors?

To ensure Rollup includes a dependency from another package during TypeScript transpilation in a Lerna monorepo, follow these steps:

Install Dependencies: Ensure that all necessary dependencies are installed in your Lerna monorepo. You can use npm install or yarn install to install dependencies for all packages.

Configure Rollup: Set up Rollup to include external dependencies. You can use the input and external options in your Rollup configuration file to specify the entry point and external dependencies.

Lerna Configuration: Ensure that Lerna is configured to handle dependencies correctly. You can use the lerna.json file to define the packages and their dependencies.

Build Script: Add a build script in your package.json to run Rollup for each package in the monorepo.

Run Build: Execute the build script to transpile TypeScript and include the dependency from another package.

By following these steps, you can configure Rollup to include dependencies from other packages during TypeScript transpilation in a Lerna monorepo, ensuring proper module resolution and avoiding build errors.