(node:10500) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension. (Use `node --trace-warnings ...` to show where the warning was created) [!] RollupError: Node tried to load your configuration file as CommonJS even though it is likely an ES module. To resolve this, change the extension of your configuration to ".mjs", set "type": "module" in your package.json file or pass the "--bundleConfigAsCjs" flag. Original error: Cannot use import statement outside a module https://rollupjs.org/command-line-interface/#bundleconfigascjs
时间: 2024-04-12 14:30:08 浏览: 21
这个警告和错误是由于使用了ES模块语法(`import`语句)而不是CommonJS模块语法(`require`语句)导致的。Rollup默认情况下将配置文件视为CommonJS模块,因此需要进行一些调整来支持ES模块语法。
你可以根据以下方法中的一种来解决这个问题:
1. 设置 ".mjs" 扩展名:将你的配置文件的扩展名从 ".js" 改为 ".mjs"。例如,将 "rollup.config.js" 改为 "rollup.config.mjs"。
2. 在 package.json 中设置 "type": "module":在你的 package.json 文件中添加一个 "type" 字段,并将其值设置为 "module"。这将告诉Node.js以ES模块的方式加载配置文件。示例:
```json
{
"type": "module"
}
```
3. 使用 "--bundleConfigAsCjs" 标志:在运行 Rollup 命令时,添加 "--bundleConfigAsCjs" 标志。这将告诉Rollup将配置文件视为CommonJS模块。示例:
```
rollup --config --bundleConfigAsCjs
```
根据你的需求和项目环境,选择其中一种方法来解决这个问题。确保在修改配置文件之后重新运行Rollup命令。
相关问题
(node:2704) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
抱歉,这是一个警告信息,意味着你在加载一个 ES 模块时需要设置 "type": "module",或者使用 .mjs 扩展名。这是因为在 Node.js 中,默认情况下只能加载 CommonJS 模块,而无法直接加载 ES 模块。你可以按照警告信息中的建议进行修改,或者将模块转换为 CommonJS 格式进行加载。如果你需要更多帮助,请提供更多上下文信息。
Add a new "type": "module" property to the package.json file
To add a new "type": "module" property to the package.json file, follow these steps:
1. Open the root directory of your project in a text editor.
2. Locate the package.json file in the root directory.
3. Add a new property "type": "module" to the package.json file, like this:
```
{
"name": "my-project",
"version": "1.0.0",
"description": "My project description",
"type": "module",
"dependencies": {
"my-dependency": "^1.0.0"
}
}
```
4. Save the changes to the package.json file.
Once you have added the "type": "module" property to the package.json file, you can use ES modules in your project without having to use the ".mjs" file extension. You can simply import modules using the standard import syntax.