Re: NSClassFormString returning nil.
Re: NSClassFormString returning nil.
- Subject: Re: NSClassFormString returning nil.
- From: Gustavo Pizano <email@hidden>
- Date: Wed, 04 May 2011 19:41:42 +0200
Hello again, im really wondering if this is the right list, but anyway if you don't mind please dont kill me. :P
If I take out the linker flags it compiles bu the NSClassFromString doesn't work
if I put the flags -ObjC and -all_load the I get this problem:
ld: duplicate symbol _OBJC_IVAR_$_CCAction.originalTarget_ in /Users/GustavPicora/Library/Developer/Xcode/DerivedData/AfrikaWS-hbbkzgjulqurwhepbahwnbcsrcun/Build/Products/Debug-iphonesimulator/libcocos2d libraries.a(CCAction.o) and /Users/GustavPicora/Library/Developer/Xcode/DerivedData/AfrikaWS-hbbkzgjulqurwhepbahwnbcsrcun/Build/Products/Debug-iphonesimulator/libIADTravelEngine.a(CCAction.o) for architecture i386
collect2: ld returned 1 exit status
Command /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/llvm-gcc-4.2 failed with exit code 1
:S :S...
thx
G.
On May 4, 2011, at 7:38 PM, Gustavo Pizano wrote:
> I found why the file not found.. I had the header path wrong.. now its ok.. im gonna try to see if the NSClassFromString works or what...
>
>
>
> On May 4, 2011, at 7:31 PM, Gustavo Pizano wrote:
>
>> Quincey Hello and thx for the reply
>>
>> I need to use the a library because its a iOS project so no framework, and also because I will be reusing the code in the lib for many other apps not just this one Im making..
>>
>> So right now I have the following set up:
>>
>> On my Library Project:
>>
>> Note: By nothing I mean empty no value
>> 2 Targets:
>> -myLibrary :
>> Library Search Paths : nothing
>> Other Link Flags : nothing
>>
>> Copy Headers: As Public : All my Headers.
>> -cocos2d
>> cocos2d lib was easily configured I have done it before for other UIKit apps
>>
>> I compile this project without problem and it compiles.
>>
>> Now I created my Final app that will use my library
>>
>> I made a workspace where I put the project and the project that contains the library, both are there.
>> -Added the libraries (cocos, myLib) to the project and then link them to the app.
>>
>> Header Search Path : Path to the headers of my library
>> Other Link Flags : -ObjC -all_Load
>>
>>
>> Now in my app delegate I have the line
>>
>> #import "IADTravelEngine.h"
>>
>> ...
>>
>> ..
>>
>> IADTEDirector * dir = [IADTEDirector sharedDirector];
>>
>> and I get that IADTravelEngine.h No such a file.
>>
>>
>> I dunno what I did before to make it work (Link) and it was working until I used the NSClassDFromString then I started modifying things and now it doesnt link again. :S
>>
>> Any help?
>>
>> Thx
>>
>> Gustavo
>>
>>
>>
>>
>> On May 4, 2011, at 7:11 PM, Quincey Morris wrote:
>>
>>> On May 4, 2011, at 09:12, Gustavo Pizano wrote:
>>>
>>>> linker problems
>>>
>>> Vagueness like this makes it hard to help you. Sometimes the actual error messages are important in deciding where to look for a solution.
>>>
>>>> What can I do?
>>>
>>> I'd very seriously suggest you don't use a static library at all. It really doesn't provide you with any benefits, so you may as well include the source code directly instead.
>>>
>>> The whole point -- well, *a* whole point -- of a static library (in traditional C terms) is to allow you to link just those parts that are referenced by your client application, without having to figure it out for yourself. This doesn't work very well in Objective-C, because the language's dynamism makes it impossible in general to determine what's "referenced" at link time.
>>>
>>> If you have other reasons for library-izing your Objective-C code, a framework is a much better choice, probably.
>>>
>>>
>>
>
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