Here are a couple missing tidbits of information...might be more...
You have your circles defined as far as size, but you do not have enough information in the sketch to full define their location. I am quite certain that if you grab the center-point for any of the circles and try to drag it...it will move (which means it is not fully defined).
I the sketch mode go Tools - Dimensions - Fully Define Sketch.
Can you upload the sketch - should be easy, the key is to keep adding dimensions till the color changes - however you may have some points left over that need to be coincident, horizontal or vertical with a line or a plane etc...
I have solved the issue. Thanks
No idea. It's your design. You're the one who knows what and why.
When in doubt, just use fix. Use it on segments, not endpoints, where possible.
I don't auto-anything, EVER.
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