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xcode collect2: ld returned 1 exit status - how to resolve?

Answer 1

A:

Do you have #import <Availability.h> in your AppWelcomeVC class header, or added to your precompiled header (MyApp_Prefix.pch)?

What frameworks do you have in your project?

Alex Reynolds 2010-05-12 22:12:14

If it was a problem with includes it wouldn't be a linker error - or am i missing something?

Georg Fritzsche 2010-05-12 22:21:59

Actually, you're right. I've edited my answer.

Alex Reynolds 2010-05-12 22:46:33

I have tried deleting and re-adding the SystemConfiguration.framework whilsts 'cleaning all targets' in between but to no avail. I am importing SystemConfiguration/SystemConfiguration.h. There's no error within the AppwelocmeVC.m where the call to SCNetworkReachabilityCreateWithAddress` is so it seems I'm importing the right framework.

Remover 2010-05-12 23:18:53

also tried adding Availability.h but nothing

Remover 2010-05-12 23:24:03

Answer 2

A:

In the past when I've had this error removing the framework and readding it fixed the problem.

Permissions problems with the framework file itself can also cause this error.

TechZen 2010-05-12 22:48:14

I have checked the permissions and the are read only for me, read-write for system but really I only need to read the file anyway, don't I? no idea what this is...

Remover 2010-05-12 23:19:35

The permissions sound correct. Xcode should be working with admin privileges anyway. Perhaps it something with the call itself. You might want to post the actual code that generates the error. Just as a test, try calling the function somewhere else in the code, preferably in another object altogether and see if you get the same error.

TechZen 2010-05-13 03:21:45

this turned out to be my silly mistake. when i first added the systemConfiguration framework I chose 'add files' instead of 'add framework'. so it got added to my project folder. i deleted straight away and added framework but it was getting confused somehow. to fix, i deleted systemConfiguration framework from my project folder and restarted xcode. thanks for the help.

Remover 2010-05-13 10:36:57

Don't you just hate that crap? If I could add up all the time I've wasted on spelling a variable name wrong or missing a dang comma somewhere I could retire.

TechZen 2010-05-13 12:35:19

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xcode collect2: ld returned 1 exit status - how to resolve?

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