Error in xcode when i try to compile using a MPVolumeView

Question

xcode gives me that error:

Undefined symbols for architecture i386:
  "_OBJC_CLASS_$_MPVolumeView", referenced from:
  objc-class-ref in VolumeViewController.o
  ld: symbol(s) not found for architecture i386
  clang: error: linker command failed with exit code 1 (use -v to see invocation)

this is viewDidload of viewcontroller.

- (void)viewDidload{
    [super viewDidUnload];
    MPVolumeView *volumeView = [[[MPVolumeView alloc] initWithFrame:CGRectMake(0, 0, 200, 20)] autorelease];
    volumeView.center = CGPointMake(160,134);
    [volumeView sizeToFit];
    volumeView.showsVolumeSlider=YES;
    [self.view addSubview:volumeView];
}

I import:

#import <MediaPlayer/MPVolumeView.h>

What could be the error?

score 3 · Answer 1 · answered Mar 24 '16 at 09:33

3

Add MediaPlayer framework in your project:

Project -> Build phases -> Link binary with libraries:

answered Mar 24 '16 at 09:33

odemolliens

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score 2 · Accepted Answer · answered Nov 04 '11 at 22:54

2

The error says that the linker cannot find the class MPVolumeView

You need to add the library or framework that includes this class to XCode

answered Nov 04 '11 at 22:54

mmmmmm

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:) Very simple! Thanks you so much! – Jayyrus Nov 04 '11 at 22:59

Error in xcode when i try to compile using a MPVolumeView

2 Answers2