title: Theos tweak: helloworld alert box did not show up
body: <p>I followed <a href="http://brandontreb.com/beginning-jailbroken-ios-development-building-and-deployment" rel="nofollow">http://brandontreb.com/beginning-jailbroken-ios-development-building-and-deployment</a>
  to make a tweak. every thing seems fine and <strong>make package install</strong> is successfull, <br/>
  but when my iPhone respring, the "helloworld" box did not show up,
  done any one knows how to solve this?<br/></p>
  
  <p>my xcode is 4.6 and sdk5.1 is installed<br/>
  my iPhone is iOS6.1.2</p>
  
  <h3>I set those</h3>
  
  <pre><code>export THEOS=/opt/theos/
  export SDKVERSION=5.1
  export THEOS_DEVICE_IP=192.168.1.101
  </code></pre>
  
  <h3>this is Makefile</h3>
  
  <pre><code>export ARCHS=armv7
  export TARGET=iphone:5.1
  include $(THEOS)/makefiles/common.mk
  helloworld_FRAMEWORKS = UIKit
  TWEAK_NAME = helloworld
  helloworld_FILES = Tweak.xm
  include $(THEOS)/makefiles/tweak.mk
  </code></pre>
  
  <h3>and this is Tweak.xm</h3>
  
  <pre><code>#import &lt;SpringBoard/SpringBoard.h&gt;
  
  %hook SpringBoard
  
  -(void)applicationDidFinishLaunching:(id)application {
  %orig;
  
  UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Welcome"
      message:@"Hello world"
      delegate:nil
      cancelButtonTitle:@"123"
      otherButtonTitles:nil];
      [alert show];
      [alert release];
  }
  
  %end
  </code></pre>