如何在 TypeScript 项目中导入节点模块。ERR_REQUIRE_ESM

Question

我正在尝试将包 p-limit 导入到我的打字稿项目中。当尝试使用运行项目时tsc && node serve.js，我遇到了以下错误。

我已经被困在这个问题上几个小时了......

Error [ERR_REQUIRE_ESM]: Must use import to load ES Module: /project/node_modules/p-limit/index.js
require() of ES modules is not supported.
require() of /project/node_modules/p-limit/index.js from /project/dist/services/file.ts is an ES module file as it is a .js file whose nearest parent package.json contains "type": "module" which defines all .js files in that package scope as ES modules.
Instead rename index.js to end in .cjs, change the requiring code to use import(), or remove "type": "module" from /project/node_modules/p-limit/package.json.

这段代码file.ts导致了这个问题：

Error [ERR_REQUIRE_ESM]: Must use import to load ES Module: /project/node_modules/p-limit/index.js
require() of ES modules is not supported.
require() of /project/node_modules/p-limit/index.js from /project/dist/services/file.ts is an ES module file as it is a .js file whose nearest parent package.json contains "type": "module" which defines all .js files in that package scope as ES modules.
Instead rename index.js to end in .cjs, change the requiring code to use import(), or remove "type": "module" from /project/node_modules/p-limit/package.json.

tsconfig.json

import pLimit from 'p-limit';
const limit = pLimit(1);

节点版本：v14.18.0

Answer 1

p-limit 4.0.0 及更高版本现在仅适用于 ESM。您可以将 p-limit 降级到 3.1.0，这是 commonjs，它应该可以正常工作。

该软件包现在是纯ESM。请阅读这个。

https://github.com/sindresorhus/p-limit/releases/tag/v4.0.0

或者，您可以将项目从 CJS 切换到 ESM，但这是一个更大的问题。

https://nodejs.org/api/esm.html