Trouble understanding the design rules in Altium

[orionsbelt]

Hello ppl

I am designing a PCB using altium. In my design, I am having a LM2698MM-ADJ which I have downloaded using Ultralibraian software from the Texas Instrument.
Now I have uploaded a picture of part of PCB layout. There are two things I cannot understand properly since I am new to Altium. In the picture, I can see that the pads are having green circles with cross in them. Now I believe that can fixed in the design rule but I dont know where exactly I am suppose to edit that.
The second one is the one which I have circled with Dark Red color. What are these and how to get rid of that?

Thanks in advance.

//OB

 

[ArticCynda]

You'll have to reduce the clearance, which can be found under Design => Rules => Electrical => Clearance. You can specify a clearance smaller than the general board clearance using InComponent('U1').

The white parallel lines indicate that the trace is unrouted, and will disappear automatically when you're routing the board.

 

[udhay_cit]

If you want to identify the type of error, place the mouse pointer over the green circle, now press "Shift+V". Now you can find the type of violation.

Regards
Udhay