[Discuss-gnuradio] grc-mimo setup

[xianda]

 Hello all:
               Environment: 2 usrp N210,mimo cable(they connect with each other and share the Ethernet)
              
               And i use the gnuradio companion to set up a very simple example.And the example is attached on the email.And I run this simple example,an error comes:
              RuntimeError: ValueError: Could not resolve device hint "" to a single device.
 
              And ping 192.168.10.2 and ping 192.168.10.3,it's all ok.
              Can someone help me to solve it?Thank you very much.
Best regards

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