Can't open attribute

Traceback (most recent call last):
File “”, line 198, in _run_module_as_main
File “”, line 88, in _run_code
File “C:\Users\杨凯瑞\gprMax\tools\plot_Bscan.py”, line 90, in
nrx = f.attrs[‘nrx’]
~~~~~~~^^^^^^^
File “h5py_objects.pyx”, line 54, in h5py._objects.with_phil.wrapper
File “h5py_objects.pyx”, line 55, in h5py._objects.with_phil.wrapper
File “C:\miniconda3\envs\gprmax\Lib\site-packages\h5py_hl\attrs.py”, line 56, in getitem
attr = h5a.open(self._id, self._e(name))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “h5py_objects.pyx”, line 54, in h5py._objects.with_phil.wrapper
File “h5py_objects.pyx”, line 55, in h5py._objects.with_phil.wrapper
File “h5py\h5a.pyx”, line 80, in h5py.h5a.open
KeyError: “Can’t open attribute (can’t locate attribute: ‘nrx’)”

Hello,

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