Can't run example 1

[Kaydeeb0y]

Hi
If I try to run example1 after installing everything, I get the following error:

File "example1.py", line 86, in <module>
    for (instance, prediction) in SimpleModel('example1').train(instances).predict(instances):
  File "example1.py", line 37, in train
    with self.model.training():
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/contextlib.py", line 17, in __enter__
    return self.gen.next()
  File "build/bdist.macosx-10.9-intel/egg/vowpal_porpoise/vw.py", line 168, in training
  File "build/bdist.macosx-10.9-intel/egg/vowpal_porpoise/vw.py", line 194, in start_training
  File "build/bdist.macosx-10.9-intel/egg/vowpal_porpoise/vw.py", line 266, in make_subprocess
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 711, in __init__
    errread, errwrite)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1308, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory

I'd hazard a guess the cache file is not getting created. Please help?