问题描述
我正在使用 TypeScript 使用 discord.js 制作机器人,但在尝试运行生成的 JavaScript 时出现以下错误。
import { Client,FriendlyError,sqliteProvider } from 'discord.js-commando';
^^^^^^^^^^^^^
SyntaxError: Named export 'FriendlyError' not found. The requested module 'discord.js-commando' is a Commonjs module,which may not support all module.exports as named exports.
Commonjs modules can always be imported via the default export,for example using:
import pkg from 'discord.js-commando';
const { Client,sqliteProvider } = pkg;
internal/process/esm_loader.js:74
internalBinding('errors').triggeruncaughtException(
^
Error [ERR_REQUIRE_ESM]: Must use import to load ES Module: C:\Users\Eliqn\projects\He2\dist\commands\general\information.js
require() of ES modules is not supported.
require() of C:\Users\Eliqn\projects\He2\dist\commands\general\information.js from C:\Users\Eliqn\projects\He2\node_modules\require-all\index.js 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 information.js to end in .cjs,change the requiring code to use import(),or remove "type": "module" from C:\Users\Eliqn\projects\He2\package.json.
information.js
:
export default class information extends Command {
/* ... */
}
information.js
正在与 .registerCommandsIn(join(dirname(fileURLToPath(import.Meta.url)),'commands'));
一起导入。所以我尝试了两种解决方案:如果我按照消息的建议删除 "type": "module"
,我会得到 SyntaxError: Cannot use import statement outside a module
,如果我将扩展名更改为 .cjs
,它最终会加载文件,但我没有不明白为什么这是必要的,也不知道如何将特定文件输出为 .cjs
而不是 .js
。尽管如此,该命令仍未正确注册。
如果有用,这是我的tsconfig.json
:
{
"compilerOptions": {
"allowJs": true,"allowSyntheticDefaultImports": true,"esModuleInterop": true,"module": "ES2020","moduleResolution": "Node","noImplicitAny": true,"noImplicitThis": true,"strictnullchecks": true,"outDir": "dist","target": "ES2020"
}
}
我认为应该有一种更直接的方法来做到这一点,但我发现模块非常混乱。
解决方法
您在代码中使用 ESM 有什么原因吗?你可以像这样配置 TypeScript 来使用 CommonJS 模块:
{
"compilerOptions": {
"allowJs": true,"allowSyntheticDefaultImports": true,"esModuleInterop": true,"module": "CommonJS",// CommonJS
"moduleResolution": "Node","noImplicitAny": true,"noImplicitThis": true,"strictNullChecks": true,"outDir": "dist","target": "ES2020"
}
}
那应该会消除错误。