An unhandler error occured: print stack trace to stderr

[btakita]

trafficstars

It is very difficult to locate the error without a stack trace.

https://github.com/solidjs/solid-start/blob/main/packages/start/dev/server.js#L26

[AshSimmonds]

Oh gosh there it is! There's only 2 places on the indexed internet where An unhandler error occured occurs - and they're from eons ago. Was driving me nuts with an untraceable error.

[btakita]

I pulled out all but 2 strands of hair on my head