导入js文件时如何修复"This dependency was not found"?

How to fix "This dependency was not found" when importing js file?

assets/admin/js/components/formatter.js

export default function addCommas(number)
{
    console.log('aaa');
    return number;
}

assets/admin/js/policy_rater.js

import addCommas from 'components/formatter';

webpack.config.js

// ...
.addEntry('admin-policy', [
    // './assets/admin/js/components/formatter.js',
    "./assets/admin/js/policies.js",
    './assets/admin/js/policy_rater.js',
    './assets/admin/js/components/month-filter.js',
])
// ...

运行 命令(至少我在终端看到它,我实际上 运行 我们的自定义命令可能调用它):

$ /app/node_modules/.bin/encore dev --watch

如此简单的导入。但是编译的时候报错:

我79个文件写入web/build/act 错误 编译失败,出现 1 个错误 11:20:32 AM

未找到此依赖项:

要安装它,你可以运行: npm install --save components/formatter

如果它不是第三方库而只是在我的代码库中归档,为什么它甚至要求我安装?

原来我需要这样导入:

import addCommas from './components/formatter';

:(