DRC error that I cannot fix

[rake4744]

I have designed a 6 layer pcb in Ultiboard v10 and I am 100% complete according to the statistics.  I have turned on "routable" for all layers of the design.  The DRC check returns this error:

The object "Trace: Width(0.0250000 inch)Layer(Copper Inner 2)Clearance(0.0060000 inch) Net(48V) " Is on a layer that is not allowed by the net settings

This error repeats, with different objects, over 100 times.  I can't seem to find the setting that will eliminate this error.  My clearances are 0.006in for all instances.  Any help will be much appreaciated.  Thanks.

[Tien_P]

On the spreadsheet view go on the "nets" tab and locate the "routing Layers" column. The first number in the cell correspond to copper top, the second number correspond to inner layer 1 and etc... For example, if you see 10001 this means you are allowed to route on the copper top and copper bottom layer only and if there are traces on the inner layers it will result in a DRC message you mentioned.   You can change all the nets setting by scrolling to the first net in the list and left click once and then scrolling to the last net on the list, hold the Shift key on your keyboard down and left click again.  All the nets in the spreadsheet will be highlighted, now if you change one cell to 111111 (allow to route on all layers) all the other cell will change as well.

Tien

[rake4744]

That worked great.  The only difference is that I was unable to type in 111111 directly.  I had to uncheck all then check all to re-apply those changes.