[Hackrf-dev] lesson1.grc returns error after gr-rds is installed

[Rachel Citchlow]

Hello all,
I believe installing gr-rds overwrote something, such that lesson1.grc
returns the error below.
Any clues for me?
thanks
Rachel

<<< Welcome to GNU Radio Companion 3.7.6git-142-g82779dce >>>
Preferences file: /home/rachel/.grc
Block paths:
    /usr/local/share/gnuradio/grc/blocks
    /home/rachel/.grc_gnuradio

Loading: "/home/rachel/Documents/lesson1.grc"
>>> Done

Showing: "/home/rachel/Documents/lesson1.grc"

Generating: "/home/rachel/Documents/top_block.py"

Executing: "/home/rachel/Documents/top_block.py"

linux; GNU C++ version 4.8.2; Boost_105400; UHD_003.008.000-7-ga60e3083

Using Volk machine: avx_32_mmx_orc
gr-osmosdr v0.1.3-4-g42c66fdd (0.1.4git) gnuradio 3.7.5.1
built-in source types: file fcd rtl rtl_tcp uhd hackrf bladerf rfspace
Using HackRF One with firmware 2014.08.1
INFO: Audio sink arch: alsa
Traceback (most recent call last):
  File "/home/rachel/Documents/top_block.py", line 180, in <module>
    tb.Start(True)
  File
"/usr/local/lib/python2.7/dist-packages/grc_gnuradio/wxgui/top_block_gui.py",
line 73, in Start
    self.start()
  File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/top_block.py",
line 104, in start
    top_block_start_unlocked(self._tb, max_noutput_items)
  File
"/usr/local/lib/python2.7/dist-packages/gnuradio/gr/runtime_swig.py", line
3590, in top_block_start_unlocked
    return _runtime_swig.top_block_start_unlocked(*args, **kwargs)
RuntimeError: list contains invalid format!
OOOOOOOOOOOOOOOOOOOOOOOO
>>> Done (return code -9)
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