Failed to inspect file when trying to use react-monaco-editor

[glfeng]

Failed to inspect file
  node_modules\monaco-editor\esm\vs\editor\standalone\browser\standalone-tokens.css

Errors encountered while trying to parse file
  node_modules\monaco-editor\esm\vs\editor\standalone\browser\standalone-tokens.css
  {:line 8, :column 1, :message "primary expression expected"}

[Thomas Heller]

shadow-cljs does not support processing CSS files. You can use webpack as described here if you need the CSS, if you want a setup a secondary tool for CSS you can set :js-options {:ignore-asset-requires true} in the build config so that shadow-cljs ignores them as builds as normal.