new glimmer project doesn't build with default babel rc

[christophermlne]

The app does build if i make the change as noted below:

.babelrc.js:

module.exports = function (api) {
  api.cache(true); // i had to add this line

  return {
    presets: ['@glimmer/babel-preset', '@babel/preset-env', '@babel/preset-typescript'],
  };
};