Offset cul-de-sac

Am using Carlson Survey CES.
I draw one straight polyline in a north direction.
I use design / offsets and intersections and pick the polyline.
I hit enter twice (no secondary roads).
The ROW offset is 25 and the radius is 20.
The EOP offset is 10.
I hit finish and obtain eop and row offsets.
Now I want an offset cul-de-sac on the left of the centerline.
I use Design/Cul-de-sacs and pick the four offset lines.
Then I pick the north end of the centerline and up comes a view of a
standard cul-de-sac.
I want it offset to the left so in the offset box I put -25 and in the
Center R. box I put 50 and hit Calculate.
I get the message "Could not calculate Cul_de_sac for layer 'EOP'. I hit ok
and get the message "Could not calculate Cul-de-sac for layer 'ROW'. I hit
ok and get a view of the offset lines and a circle.
What am I doing wrong.
Thanks,
Jeff Hiner
I draw one straight polyline in a north direction.
I use design / offsets and intersections and pick the polyline.
I hit enter twice (no secondary roads).
The ROW offset is 25 and the radius is 20.
The EOP offset is 10.
I hit finish and obtain eop and row offsets.
Now I want an offset cul-de-sac on the left of the centerline.
I use Design/Cul-de-sacs and pick the four offset lines.
Then I pick the north end of the centerline and up comes a view of a
standard cul-de-sac.
I want it offset to the left so in the offset box I put -25 and in the
Center R. box I put 50 and hit Calculate.
I get the message "Could not calculate Cul_de_sac for layer 'EOP'. I hit ok
and get the message "Could not calculate Cul-de-sac for layer 'ROW'. I hit
ok and get a view of the offset lines and a circle.
What am I doing wrong.
Thanks,
Jeff Hiner