Cannot create property 'tag' on string

Hi, i want to try fre in js-framework-benchmark, but I get error - “Cannot create property ‘tag’ on string …”

version:

“fre”: 2.0.1

import { render  }  from "fre";

render(
    <div className="col-md-6"><h1>React Optimized</h1></div>,
    document.getElementById("main")
);

babel:

{
    presets: ['@babel/preset-env'],
    plugins: [[
        '@babel/plugin-transform-react-jsx',
        {
            runtime: 'automatic',
            importSource: 'fre',
        },
    ]]
}

First text node throw this error

(error throw on this line - https://github.com/yisar/fre/blob/master/src/reconciler.ts#L142)

[yisar]

It seems that the H function is not suitable for Babel’s jsx2 parsing. Before adjusting the H function, you can use the jsx1:

{
  "plugins": [
    [
      "@babel/plugin-transform-react-jsx",
      {
        "pragma": "h",
        "pragmaFrag": "Fragment"
      }
    ]
  ]
}

[yisar]

It seems that the problem here has been solved, I will close it first