gr_modtool crash

[César MR]

Hi! I'm trying to follow the tutorial about working with gnuradio in c++, which can be found in the wiki, but i when i try to run gr_modtool, it crash. At first i thought that it was because of my language, so i changed my linux mint language to UK english, but it didn't work.

In addition i had to run gr_modtool with admin privileges in order to  get a crash report in /var/crash directory.

You can download the whole crash log here: https://mega.nz/#!yLxRGaRI

What do you think is the root of my problem? thank you

below the traceback (without using admin privileges):

Traceback (most recent call last):

  File "/usr/bin/gr_modtool", line 30, in <module>

    cli()

  File "/usr/lib/python3/dist-packages/click/core.py", line 722, in __call__

    return self.main(*args, **kwargs)

  File "/usr/lib/python3/dist-packages/click/core.py", line 697, in main

    rv = self.invoke(ctx)

  File "/usr/lib/python3/dist-packages/click/core.py", line 1066, in invoke

    return _process_result(sub_ctx.command.invoke(sub_ctx))

  File "/usr/lib/python3/dist-packages/click/core.py", line 895, in invoke

    return ctx.invoke(self.callback, **ctx.params)

  File "/usr/lib/python3/dist-packages/click/core.py", line 535, in invoke

    return callback(*args, **kwargs)

  File "/usr/lib/python3/dist-packages/gnuradio/modtool/cli/base.py", line 153, in wrapper

    return func(*args, **kwargs)

  File "/usr/lib/python3/dist-packages/gnuradio/modtool/cli/newmod.py", line 64, in cli

    run(self)

  File "/usr/lib/python3/dist-packages/gnuradio/modtool/cli/base.py", line 172, in run

    module.run()

  File "/usr/lib/python3/dist-packages/gnuradio/modtool/core/newmod.py", line 91, in run

    s = filetext.read()

  File "/usr/lib/python3.6/codecs.py", line 321, in decode

    (result, consumed) = self._buffer_decode(data, self.errors, final)

UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe8 in position 5: invalid continuation byte

Error in sys.excepthook:

Traceback (most recent call last):

  File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 145, in apport_excepthook

    os.O_WRONLY | os.O_CREAT | os.O_EXCL, 0o640), 'wb') as f:

PermissionError: [Errno 13] Permission denied: '/var/crash/_usr_bin_gr_modtool.1000.crash'

Original exception was:

Traceback (most recent call last):

  File "/usr/bin/gr_modtool", line 30, in <module>

    cli()

  File "/usr/lib/python3/dist-packages/click/core.py", line 722, in __call__

    return self.main(*args, **kwargs)

  File "/usr/lib/python3/dist-packages/click/core.py", line 697, in main

    rv = self.invoke(ctx)

  File "/usr/lib/python3/dist-packages/click/core.py", line 1066, in invoke

    return _process_result(sub_ctx.command.invoke(sub_ctx))

  File "/usr/lib/python3/dist-packages/click/core.py", line 895, in invoke

    return ctx.invoke(self.callback, **ctx.params)

  File "/usr/lib/python3/dist-packages/click/core.py", line 535, in invoke

    return callback(*args, **kwargs)

  File "/usr/lib/python3/dist-packages/gnuradio/modtool/cli/base.py", line 153, in wrapper

    return func(*args, **kwargs)

  File "/usr/lib/python3/dist-packages/gnuradio/modtool/cli/newmod.py", line 64, in cli

    run(self)

  File "/usr/lib/python3/dist-packages/gnuradio/modtool/cli/base.py", line 172, in run

    module.run()

  File "/usr/lib/python3/dist-packages/gnuradio/modtool/core/newmod.py", line 91, in run

    s = filetext.read()

  File "/usr/lib/python3.6/codecs.py", line 321, in decode

    (result, consumed) = self._buffer_decode(data, self.errors, final)

UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe8 in position 5: invalid continuation byte