[news.eclipse.newcomer] eclipse shows folder icon with red error symbol

[Magnus Warker <warker@xxxxxxxxx>]

Hi group,

the root node of my java project is shown with a white cross within a red
box, signalling an error.

This error is due to many errors in a subfolder named 'doc'. This is the
folder where the generated javadoc lives. Eclipse has found some errors in
the HTML code.

However, I think it is unwanted that this folder and in turn the whole
project is marked as erroneous.

What can I do about this? Am I using something the wrong way? In general,
can I tell Eclipse not to analyze code in some folders?

Thanks a lot!
Magnus