使用export * as别名导出模块报错，需额外loader？求排查

我在使用export * as Styled from './styled';这种别名导出模块时出现报错，但查阅MDN文档确认该导出语法是合法的。以下是相关代码及报错信息，恳请帮忙排查问题：

相关代码 #

index.ts #

export * from './dummyData';
export * from './interface';
export * as Styled from './styled'; // 此行疑似引发报错

styled.ts #

export const Header = styled.div`
  display: flex;
  position: relative;
  align-items: center;
  height: 60px;
  padding: 0 20px;
  border-bottom: 1px solid ${colors.grey450};
`;

export const IconWrapper = styled.div`
  position: absolute;
  top: 18px;
  right: 16px;
  cursor: pointer;
`;
// 其他导出内容省略

报错信息 #

You may need an additional loader to handle the result of these loaders.
| export * from './dummyData';
| export * from './interface';
> export * as Styled from './styled';

内容的提问来源于stack exchange，提问作者Wreeecks