Hi:

 

I need someone help me, why I can't run example from this page:
http://www.gnu.org/software/gnuradio/doc/exploring-gnuradio.html

 

When I run example 1:Dial Tone Output.

I get error message: 

Traceback (most recent call last):

  File "am.py", line 20, in <module>

    fg = build_graph ()

  File "am.py", line 10, in build_graph

    fg = gr.flow_graph ()

AttributeError: 'module' object has no attribute 'flow_graph'

 

When I run example 2:A Complete FM Receiver

I get error message:

Traceback (most recent call last):

  File "test.py", line 5, in <module>

    from gnuradio import mc4020

ImportError: cannot import name mc4020

 

Why? How can I do?

Thanks.

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