Turbopack Error: Next.js package not found

[mcdavidobioha]

Turbopack version: v15.5.2-3-gdb56d7759
Next.js version: 0.0.0

Error message:

Turbopack Error: Next.js package not found

[mcdavidobioha]

Error [TurbopackInternalError]: Next.js package not found

Debug info:

• Execution of get_entrypoints_with_issues_operation failed
• Execution of EntrypointsOperation::new failed
• Execution of Project::entrypoints failed
• Execution of AppProject::routes failed
• Execution of directory_tree_to_entrypoints_internal failed
• Execution of directory_tree_to_loader_tree failed
• Execution of get_next_package failed
• Next.js package not found
  at (TurbopackInternalError: Next.js package not found) {
  location: undefined
  }

[nyunja]

changed the next.config.ts to use a more robust way to get the __dirname and output file path. I created a proper __dirname using fileURLToPath(import.meta.url) for ES module compatibility and changed outputFileTracingRoot to point to the monorepo root using path.join(__dirname, "../.."). This worked for me:

import type { NextConfig } from "next";
import path from "path";
import { fileURLToPath } from "url";

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

const nextConfig: NextConfig = {
outputFileTracingRoot: path.join(__dirname, "../.."),
};

export default nextConfig;