styled-jsx-test

npm i

npm run build:normal

npm run build:error

How to reproduce

After executing npm run build:error, we will get

import _JSXStyle2 from "styled-jsx/style";
import React from 'react';

var Card = function Card(_ref) {
  var info = _ref.info;
  return /*#__PURE__*/React.createElement("div", {
    className: "jsx-2790356162"
  }, "12345678", /*#__PURE__*/React.createElement(_JSXStyle, {
    id: "2790356162"
  }, "div.jsx-2790356162{color:red;}"));
};

export default Card;

Pay attention to line 1 and line 8, _JSXStyle is not defined.

But when change const Card = ({ info }) => { to const Card = (props) => { or remove @babel/preset-env in babel.config.js, output will be

import _JSXStyle from "styled-jsx/style";
import React from 'react';

var Card = function Card(props) {
  return /*#__PURE__*/React.createElement("div", {
    className: "jsx-2790356162"
  }, "12345678", /*#__PURE__*/React.createElement(_JSXStyle, {
    id: "2790356162"
  }, "div.jsx-2790356162{color:red;}"));
};

export default Card;

No error happends since `import _JSXStyle from "styled-jsx/style";' in line 1.