objective c - How do you get the 'use automatic reference counting' checkbox to show when starting a new mac application in xcode? -


i started learning mac application development doing tutorial https://developer.apple.com/library/mac/referencelibrary/gettingstarted/roadmaposx/books/rm_yourfirstapp_mac/articles/gettingstarted.html

i feel dumb because stuck on first step. says make sure "use automatic reference counting" checkbox checked, don't have checkbox.

this screenshot tutorial: enter image description here

and screenshot laptop while following along tutorial: enter image description here

since not yet sure automatic reference counting feel stuck because don't know if important or not. know why option not shown in xcode?

the quick version: automatic reference counting default, go next step.

the longer version: tutorial appears written using xcode 4.4 in examples. current version of xcode 5.1, , apple has made bunch of changes between , now, cosmetic , more substantial.

one of changes automatic reference counting (arc) default choice new projects. arc method of memory management compiler , runtime work keep track of objects still in use, , release ones aren't. when technology first introduced, had rough spots, , made sense make optional.

apple pushing use arc projects, removed checkbox in create project dialog. i'm not sure when happened; may have been xcode 5.0 or 5.1.

all said: tutorial you're using written earlier version of xcode you're using. big concepts going still apply, you'll run issues time time screenshots don't same or options different. take deep breath , go it. :)


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