Trouble with the Shell command: "The body could not be repaired after..."

[Anonymous]

I am having some trouble using the shell command on my design. Here is the error message I get when I try to make a 1/8 inch shell on the entire body:

"Error: The body could not be repaired after deleting faces. Try changing the selection, or use the Delete tool in the Patch workspace to delete geometry without repairing the gap."

I saw another post about this, but I am new to Fusion 360 and I did not understand their solution.

Attatched is the design.

[etfrench]

You have details closer together than .25".  Most of these will disappear when you apply the shell, but the lower two horizontal pieces can't be shelled.  I used the split body command to separate them from the main body.