This video https://www.youtube.com/watch?v=y9uk-3A1acM will show you how to start with a blank slate in ECLIPSE and make a project – including compile and flash. Within 10 minutes you may well have a working “Hello world”.
Magic. We owe the author a dept of thanks – and thanks to Glenn for bringing this to my attention. More like this would be great.
On the other hand.. I got very excited, pulled in a couple of items from another library, compiled..
ets_uart_printf("Hello World – First Project!\r\n");
nothing. Not a sausage.