Why Codesandbox can't render the code and show strange error

Question

I learn JavaScript and read code at this Codesandbox

Problem is it gives this error often on some Sandbpxes:

NoSuchMethodError: method not found: 'write$1' on null

It looks like this; What can I do to remove this error?

Answer 1

If your project has any .scss, comment it all. After it works fine, that is a problem of stylesheet.

Check what variable(starting with '$') is wrong or missing. If you add third party component, check guide line for it.