Adding External framework to Xcode using Mac OS X
===

I am using Log4Cocoa Framework in my Application .I have added the external Frame work and able to compile it but after running i am getting error.
 
dyld: Library not loaded: /Frameworks/Log4Cocoa.framework/Versions/A/Log4Cocoa
  Referenced from: /Users/vikash/Library/Developer/Xcode/DerivedData/MyWorkSpace-btvfbtjbyahkllaocxcqizjeneoi/Build/Products/Debug/MyApp.app/Contents/MacOS/MyApp
  Reason: image not found
 
dyld`dyld_fatal_error:
0x7fff6853506c:  int3  
0x7fff6853506d:  nop   

 
Kindly help me out to resolev such issue as i am new to Mac os x.
 
 
Regards,
Vikash