Re: [Discuss-gnuradio] Tutorial issue: AttributeError: 'module' object has no attribute 'square2_ff'

[Marcus D. Leech]

On 03/02/2016 03:23 PM, Lefteris Kampianakis wrote:

I installed gnuradio using the build-gnuradio script after I fixed the  libzmq-dev typo.

That's not a typo--Ubuntu, in their infinite wisdom, opted to change the name of that package mid-stream, so there's no way for
  build-gnuradio to really know which one of two will succeed, so it tries both--one of them WILL produce a (non-fatal) error.

 ldd libgnuradio-howto.so gives the following output:

linux-vdso.so.1 =>  (0x00007ffd821b1000)

libboost_system.so.1.54.0 => /usr/lib/x86_64-linux-gnu/libboost_system.so.1.54.0 (0x00007f3a0fcde000)

libgnuradio-runtime-3.7.9.1.so.0.0.0 => /usr/local/lib/libgnuradio-runtime-3.7.9.1.so.0.0.0 (0x00007f3a0fa0f000)

libgnuradio-pmt-3.7.9.1.so.0.0.0 => /usr/local/lib/libgnuradio-pmt-3.7.9.1.so.0.0.0 (0x00007f3a0f7c7000)

libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f3a0f4c3000)

libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f3a0f2ad000)

libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f3a0eee8000)

libvolk.so.1.2.1 => /usr/local/lib/libvolk.so.1.2.1 (0x00007f3a0eb2a000)

libboost_filesystem.so.1.54.0 => /usr/lib/x86_64-linux-gnu/libboost_filesystem.so.1.54.0 (0x00007f3a0e914000)

libboost_thread.so.1.54.0 => /usr/lib/x86_64-linux-gnu/libboost_thread.so.1.54.0 (0x00007f3a0e6fe000)

libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f3a0e4e0000)

librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f3a0e2d8000)

libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f3a0dfd2000)

/lib64/ld-linux-x86-64.so.2 (0x00007f3a100ed000)

liborc-0.4.so.0 => /usr/lib/x86_64-linux-gnu/liborc-0.4.so.0 (0x00007f3a0dd50000)

The problem appeared after I upgraded from ubuntu 12.04 to ubuntu 14.04 if that helps.

uname -a gives:

3.13.0-79-generic #123-Ubuntu SMP Fri Feb 19 14:27:58 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

I had a module that acted as a very simple detector for my receiver that converted a complex number to a binary value (byte output) that worked fine before the upgrade that I have developed with the same method as the tutorial. Now of course it doesn't work. 

I wouldn't send a message if I hadn't spend 3 days on this but now I am really stuck. Please advise.

Thank you

Lefteris

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