When I sketch a circle on my drawing to make a crop view , the icon crop view change to unactive
The circle you sketched probably doesn't belong to the drawing view. Move the drawing view and see if the circle moves with it. If it doesn't, then delete the circle and make a new one, making sure the drawing view is active when doing so.
You can't crop a view if there's a detail view taken from this view, even if the crop is located outside of the detail's profile.
Please post your files to your original post (click Edit in the upper right) and also post some images of your situation.
This will help with the replies.
See: How can I attach a file to a forum post?
I think I found why
My view was on area of another view.
Try hitting the crop view button first while it's still active.
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