xcode4 use of static library

xcode4 call a static library. Procedure:
1. Link in the build phase of the project binary with libraries to add a static library in connection
2 Set the search path, user search header paths as $ (BUILT_PRODUCTS_DIR). Set recursive.
3 Set the other link flags to-ObjC

But compile error
Undefined symbols for architecture i386:
ld: symbol (s) not found for architecture i386
collect2: ld returned 1 exit status

Really can not handle it. Expert help. Thank you!
Reply:
Tip already understand more, you use static library target machine CPU architecture and engineering you need is not the same.

Reply:

cited a floor ultrapro reply:

tips have been more aware of the target machine you are using a static library CPU architecture and engineering need is you not the same.

Indeed, the problem of static library. Armcc recompile with a static library, you should be fine.
Reply:
Static library does not recognize, or library path problem too
Reply:

cited a floor ultrapro reply:

tips have been more aware of the target machine you are using a static library CPU architecture and engineering need is you not the same.

But in the demo is in accordance with arm6, arm7 compiled. Can be used.
In my application where it is not, report this error.


Reply:
Will it be a reference to xcode3 xcode4 static library will have a problem?

Reply:
I also encountered a similar problem that I was put under Xcode3 symbol (s) not found in XCODE4 compiled under lib. Get the answer that? Landlord.