-symbol(s) not found for architecture i386
Have had this error a number of times at compile time. There are no apparent errors or warning prior to compile, but it fails nonetheless.
You need to read the bottom portion carefully for clues. This time it said CoreDataTableViewController was not found. I deleted these files and re-imported them, and it worked!
Go figure, apparently the original import routine (drag files to file organizer) didn't work.