# Error running top\_block.py in E110

**URL:** <https://www.ruby-forum.com/t/error-running-top-block-py-in-e110/223879>\
**Category:** GNU Radio\
**Created:** [October 22, 2012, 5:09am UTC](https://www.ruby-forum.com/t/error-running-top-block-py-in-e110/223879 "2012-10-22T05:09:34Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![aris](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/258eb7/32.png) [@aris](https://www.ruby-forum.com/u/aris)\
**Post date:** [October 22, 2012, 5:09am UTC](https://www.ruby-forum.com/t/error-running-top-block-py-in-e110/223879/1 "2012-10-22T05:09:34Z")

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Hi All,

I’m running a block that I finished in GRextras in the USRP E110. I  
built  
the grextras as:

build/sudo cmake …/  
build/sudo make  
build/sudo make install

It finishes without errors, but when I run my example in E110:

/python top\_block.py. It gives the following error:

_File “top\_block.py”, line 14, in   
import gnuradio.extras as gr\_extras_

Anyone as seen a similar error before?.

Thanks a lot,

Jose.

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**Author:** ![Jose\_TSDiaz](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/848f3c/32.png) [@Jose\_TSDiaz](https://www.ruby-forum.com/u/Jose_TSDiaz)\
**Post date:** [October 22, 2012, 5:13am UTC](https://www.ruby-forum.com/t/error-running-top-block-py-in-e110/223879/2 "2012-10-22T05:13:40Z")

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On 10/21/2012 08:08 PM, Jose T. Diaz wrote:

> /python top\_block.py. It gives the following error:
> 
> _File “top\_block.py”, line 14, in   
> import gnuradio.extras as gr\_extras_

Is there more to this error message? This is just the traceback.

Sorry I cant really say without the rest. -josh

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<div class="post-metadata">

**Author:** ![Jose\_TSDiaz](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/848f3c/32.png) [@Jose\_TSDiaz](https://www.ruby-forum.com/u/Jose_TSDiaz)\
**Post date:** [October 22, 2012, 9:27am UTC](https://www.ruby-forum.com/t/error-running-top-block-py-in-e110/223879/3 "2012-10-22T09:27:10Z")

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Hi Josh,

The error was when I built the grextras in the E110. I did again and now  
is  
working properly,

Thanks,

Jose