[Sample] Copilot Connector App - deploy fails with TS1479 build error

[HuihuiWu-Microsoft]

Summary

The sample Copilot Connector App fails to deploy in remote debug. The deploy fails at the npm run build step with a TypeScript error (TS1479).

Repro Steps

1. Create the "Copilot Connector App" sample.
2. Provision.
3. Deploy (remote debug).

Result: Deploy fails at the build step:

> teamsfx-template-api@1.0.0 build
> tsc

error TS1479: The current file is a CommonJS module whose imports will produce 'require' calls; however, the referenced file is an ECMAScript module and cannot be imported with 'require'. Consider writing a dynamic 'import("./index.js")' call instead.

The failing action is cli/runNpmCommand running npm run build --if-present during the deploy lifecycle stage.

Reference

• ADO Bug: 37904538 – [VSC][Daily] The sample 'Copilot Connector App' deployed failed in remote debug

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