Show more debugging messages

So I am using this react and I want to use the debugger to help me understand the application better but I see this message after it say that errors or warnings exist.

Use ‘stats.errorDetails: true’ resp. ‘–stats-error-details’ to show it.

Where do I add either of these to get the full debug messages?

image

Where are you getting that error?

i ran npm run build, and at the end I see this

There are many warnings, which you can ignore really.