[api-extractor] Error: The expression contains an import() type, which is not yet supported by API Extractor

[imtaotao]

Please prefix the issue title with the project name i.e. [rush], [api-extractor] etc.

Is this a feature or a bug?

• Feature
• Bug

Please describe the actual behavior.
This error occurred when I merged types.

index.ts

import { channel } from './channel';
const Gar = { channel };

index.d.ts

/// <reference types="node" />
import { channel } from './channel';
declare const Gar: {
    channel: import("events").EventEmitter;
};

./channel.ts

import { EventEmitter } from 'events';
export const channel = new EventEmitter();

./channel.d.ts

/// <reference types="node" />
import { EventEmitter } from 'events';
export declare const channel: EventEmitter;

What is the expected behavior?
The above .d.ts is generated by tsc. I hope this syntax is allowed，no error happend 😂 , Thank you.

If this is a bug, please provide the tool version, Node.js version, and OS.

• Tool:
• **Tool Version:7.9.2
• **Node Version:v12.18.2
  • **Is this a LTS version?no
  • **Have you tested on a LTS version?no
• OS:

[imtaotao]

I have set api-extractor.json, but still can't found solution 😭.

child json

{
  "extends": "../../api-extractor.json",
  "mainEntryPointFilePath": "./dist/packages/<unscopedPackageName>/src/index.d.ts",
  "dtsRollup": {
    "publicTrimmedFilePath": "./dist/<unscopedPackageName>.d.ts"
  }
}

parent json

{
  "$schema": "https://developer.microsoft.com/json-schemas/api-extractor/v7/api-extractor.schema.json",

  "apiReport": {
    "enabled": true,
    "reportFolder": "<projectFolder>/temp/"
  },

  "docModel": {
    "enabled": true
  },

  "dtsRollup": {
    "enabled": true
  },

  "tsdocMetadata": {
    "enabled": false
  },

  "messages": {
    "compilerMessageReporting": {
      "default": {
        "logLevel": "warning"
      }
    },

    "extractorMessageReporting": {
      "default": {
        "logLevel": "warning",
        "addToApiReportFile": true
      },

      "ae-missing-release-tag": {
        "logLevel": "none"
      }
    },

    "tsdocMessageReporting": {
      "default": {
        "logLevel": "warning"
      },

      "tsdoc-undefined-tag": {
        "logLevel": "none"
      }
    }
  }
}

[achrinza]

This is a known limitation: #1050

Try adding import { EventEmitter } from 'events'; to index.ts to prevent lazy imports.

[imtaotao]

Add import { EventEmitter } from 'events' can indeed solve this problem, but actually, not useing EventEmitter may make my colleague delete this line of code

[kasperisager]

I imagine this has been solved by #1916 as well.

[octogonz]

I imagine this has been solved by #1916 as well.

It has! Check out API Extractor 7.18.0! 🎈