[Mne_analysis] Assertion error when running mne.io.read_raw_brainvision

Gladia Hotan gladiach at gmail.com
Fri Apr 22 16:18:04 EDT 2016
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Hi,

I'm trying to open a vhdr file in Python. When I do

raw = mne.io.read_raw_brainvision(<filename>)

I get this error:
Traceback (most recent call last):
  File "/usr/pubsw/packages/python/anaconda/lib/python2.7/site-packages/IPython/core/interactiveshell.py",
line 3035, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-4-1ae38f69fbbe>", line 1, in <module>
    mne.io.read_raw_brainvision(filename)
  File "/usr/pubsw/packages/python/anaconda/lib/python2.7/site-packages/mne/io/brainvision/brainvision.py",
line 624, in read_raw_brainvision
    preload=preload, verbose=verbose)
  File "<string>", line 2, in __init__
  File "/usr/pubsw/packages/python/anaconda/lib/python2.7/site-packages/mne/utils.py",
line 541, in verbose
    return function(*args, **kwargs)
  File "/usr/pubsw/packages/python/anaconda/lib/python2.7/site-packages/mne/io/brainvision/brainvision.py",
line 80, in __init__
    info, self._eeg_info, events = _get_eeg_info(vhdr_fname, eog, misc)
  File "/usr/pubsw/packages/python/anaconda/lib/python2.7/site-packages/mne/io/brainvision/brainvision.py",
line 406, in _get_eeg_info
    assert l == 'Brain Vision Data Exchange Header File Version 1.0'
AssertionError

How can I debug this? I think there's nothing wrong with the vhdr file
itself because I have been able to load it and process it in Matlab.


Thanks,

Gladia
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