title: Common Crypto Library error
body: <p>I am trying to convert NSString to MD5 Hash. I have used this algorithm <a href="https://stackoverflow.com/questions/1524604/md5-algorithm-in-objective-c">MD5 algorithm in Objective C</a></p>
  
  <p>While running the program I am getting following error</p>
  
  <pre><code>ld: library not found for -lcommonCrypto
  clang: error: linker command failed with exit code 1 (use -v to see invocation)
  </code></pre>
  
  <p>Can anyone tell me what I am missing here?</p>
  
  <p>I have also added libcommonCrypto.dylib</p>