clang: error: linker command failed with exit code 1

Question

I just opened a project i havent worked for in a couple months, and just tried to compile and run it.

I immediately got:

Undefined symbols for architecture i386:
 "l_OBJC_PROTOCOL_$_VideoOverviewControllerDelegate", referenced from:
    l_OBJC_CLASS_PROTOCOLS_$_FeaturedViewController in FeaturedViewController.o
  ld: symbol(s) not found for architecture i386
 clang: error: linker command failed with exit code 1

and no amount of cleaning helped this error. I checked the two classes referenced in the error but couldn't find any error.

score 3 · Answer 1 · answered Sep 09 '12 at 20:42

3

I had this issue as well and finally found that i had implemented the same class two times. Check our class names for duplicates or duplicate .h or .m files.

answered Sep 09 '12 at 20:42

ironcladmvtm

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If you had duplicate symbols, the error messages would most likely be different from what the OP is seeing. – Mysticial Sep 23 '12 at 04:17
@Mysticial has a point. The error message would be something like: `duplicate symbols found for architecture`, not what the OP has listed. – Sam Spencer Jul 29 '13 at 21:35

score 3 · Answer 2 · answered Aug 19 '13 at 12:47

3

Just be sure you didn't import a .m in your file.

#import "myFile.m"

will give you this error... just fix it with a

#import "myFile.h"

answered Aug 19 '13 at 12:47

DjimOnDev

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score 1 · Accepted Answer · answered Oct 12 '11 at 12:28

1

Probably you don't have VideoOverviewControllerDelegate (i don't know, what it is) in linked frameworks. How to add framework to project.

answered Oct 12 '11 at 12:28

MarrLiss

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clang: error: linker command failed with exit code 1

3 Answers3

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