xcode and basic sdk compatibility version

[flyman248]

Hi, I'm a new user of smart basic project. I bought the ipad version and later I've installed the basic sdk on my mac and I'm going on with xcode.
No problem on mac os 10.9 and maverick 10.9.
I also have a desktop with mac os 10.8.2 and xcode 4.6.3 that I cannot update to newer version because of personal software sunning on it.
I repeated the same process on my mountain lion mac populated with xcode 4.6.3. But in this case I cannot complete the build with following errors:

Undefined symbols for architecture i386:
"_OBJC_CLASS_$_UIKeyCommand", referenced from:
objc-class-ref in libSB.a(ViewController.o)
"_UIKeyInputDownArrow", referenced from:
-[CodeToolbar keyCommands] in libSB.a(ViewController.o)
"_UIKeyInputEscape", referenced from:
-[CodeToolbar keyCommands] in libSB.a(ViewController.o)
"_UIKeyInputLeftArrow", referenced from:
-[CodeToolbar keyCommands] in libSB.a(ViewController.o)
"_UIKeyInputRightArrow", referenced from:
-[CodeToolbar keyCommands] in libSB.a(ViewController.o)
"_UIKeyInputUpArrow", referenced from:
-[CodeToolbar keyCommands] in libSB.a(ViewController.o)
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

can anyone help me to solve this problem?

Thank You so much in advance

[Mr. Kibernetik]

You will need Xcode version >=5.

[flyman248]

Thank You . I thought so but now I know I have to update it as a must.