need to clear error about box 15 on w-2. i am active duty military with home residence in texas but current residing in california. do i just copy and paste box b?

Several  states do not have a state income tax.  So these states will not show up in certain drop down lists.   Leave boxes 15, 16, and 17 blank when you enter a W-2 for these states.

Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington and Wyoming