title: Telegram iOS app won't build with Xcode 6.1.1
body: <p>I have downloaded the code source of Telegram app on <a href="https://telegram.org/source" rel="nofollow">their website</a>. When I open the project in Xcode 6.1.1, I get the following error:</p>
  
  <pre><code> UFW (M iphonesimulator): ERROR: Build failed Traceback (most recent call last): File"/Users/yanfeng/Library/Developer/Xcode/DerivedData/Build/Intermediates/MtProtoKit.build/Debug-iphonesimulator/MtProtoKit iOS.build/Script-D05A831218AFB3F9007F1076.sh", line 812, in &lt;module&gt;run_build()File "/Users/yanfeng/Library/Developer/Xcode/DerivedData/Build/Intermediates/MtProtoKit.build/Debug-iphonesimulator/MtProtoKit iOS.build/Script-D05A831218AFB3F9007F1076.sh", line 787, in run_build
      add_symlinks_to_framework(project)
    File "/Users/yanfeng/Library/Developer/Xcode/DerivedData/Build/Intermediates/MtProtoKit.build/Debug-iphonesimulator/MtProtoKit iOS.build/Script-D05A831218AFB3F9007F1076.sh", line 675, in add_symlinks_to_framework
      attempt_symlink(os.path.join(base_dir, "Versions", "Current"), os.environ['FRAMEWORK_VERSION'])
    File "/Users/yanfeng/Library/Developer/Xcode/DerivedData/Build/Intermediates/MtProtoKit.build/Debug-iphonesimulator/MtProtoKit iOS.build/Script-D05A831218AFB3F9007F1076.sh", line 493, in attempt_symlink
      os.stat(os.path.abspath(os.path.join(link_path, "..", link_to)))
  OSError: [Errno 2] No such file or directory: '/Users/yanfeng/Library/Developer/Xcode/DerivedData/Build/Products/Debug-iphonesimulator/MtProtoKit iOS.framework/Versions/A'
  Showing first 200 notices only
  Command /bin/sh failed with exit code 1
  </code></pre>