title: Exception Occured While Building Android project
body: <p>OS: Linux mint 14.</p>
  
  <p>Following error occurs when I try to run my project.</p>
  
  <pre><code>[TRACE] Writing out AndroidManifest.xml
  [ERROR] Exception occured while building Android project:
  [ERROR] Traceback (most recent call last):
  [ERROR]   File "/home/aqeel/.titanium/mobilesdk/linux/3.1.0.GA/android/builder.py", line 2528, in &lt;module&gt;
  [ERROR]     builder.build_and_run(False, avd_id, debugger_host=debugger_host, profiler_host=profiler_host)
  [ERROR]   File "/home/aqeel/.titanium/mobilesdk/linux/3.1.0.GA/android/builder.py", line 2264, in build_and_run
  [ERROR]     self.manifest_changed = self.generate_android_manifest(compiler)
  [ERROR]   File "/home/aqeel/.titanium/mobilesdk/linux/3.1.0.GA/android/builder.py", line 1404, in generate_android_manifest
  [ERROR]     '-I', self.android_jar], warning_regex=r'skipping')
  [ERROR]   File "/home/aqeel/.titanium/mobilesdk/linux/3.1.0.GA/android/run.py", line 38, in run
  [ERROR]     print "[DEBUG] %s" % subprocess.list2cmdline(args_to_log)
  [ERROR]   File "/usr/lib/python2.7/subprocess.py", line 587, in list2cmdline
  [ERROR]     needquote = (" " in arg) or ("\t" in arg) or not arg
  [ERROR] TypeError: argument of type 'NoneType' is not iterable
  [ERROR] :  Build process exited with code 1
  [ERROR] :  Project failed to build after 1m 7s 999ms
  </code></pre>