MATNWB nwb.general_devices_models not found

[JustinKillebrew]

The ecephys tutorial (https://matnwb.readthedocs.io/en/stable/pages/tutorials/ecephys.html) breaks at this line:

nwb.general_devices_models.set('Neurovoxels 0.99', device_model);

Unrecognized method, property, or field 'general_devices_models' for class
'NwbFile'.

Not sure how important the field is but I have another problem with the electrodes table and I wonder if they might be related. Briefly, adding the tutorial electrode table, causes an error when nwbExport() is called.

Undefined function 'isKey' for input arguments of type 'cell'.

Error in schemes.Namespace/getRootBranch (line 97)
            iHasTypeDef = isKey(cursor, obj.TYPEDEF_KEYS);

Error in file.processClass (line 3)
    branch = [{namespace.getClass(name)} namespace.getRootBranch(name)];

Error in schemes.internal.getRequiredPropsForClass (line 28)
    [processed, classprops, ~] = file.processClass(className, namespace,
    processedTypeMap);

Error in types.untyped.MetaClass/getRequiredProperties (line 172)
                requiredProps =
                schemes.internal.getRequiredPropsForClass(className);

Error in types.untyped.MetaClass/checkRequiredProps (line 188)
            requiredProps = obj.getRequiredProperties();

Error in types.untyped.MetaClass/throwErrorIfMissingRequiredProps (line 238)
            missingRequiredProps = obj.checkRequiredProps();

Error in types.untyped.MetaClass/export (line 58)
            obj.throwErrorIfMissingRequiredProps(fullpath)

Error in types.hdmf_common.Container/export (line 31)
        refs = export@types.untyped.MetaClass(obj, fid, fullpath, refs);

Error in types.hdmf_common.DynamicTable/export (line 98)
        refs = export@types.hdmf_common.Container(obj, fid, fullpath, refs);

Error in types.core.ElectrodesTable/export (line 250)
        refs = export@types.hdmf_common.DynamicTable(obj, fid, fullpath, refs);

Error in types.core.NWBFile/export (line 678)
            refs = obj.general_extracellular_ephys_electrodes.export(fid,
            [fullpath '/general/extracellular_ephys/electrodes'], refs);

Error in NwbFile/export (line 80)
                refs = export@types.core.NWBFile(obj, output_file_id, '/', {});

Error in nwbExport (line 97)
        nwbFileObjects(iFiles).export(filePath, mode);

Error in try3 (line 90)
nwbExport(nwb, 'try3.nwb')

I'll post more details about the electrode table in another thread. How should I handle the nwb.general_devices_models not found problem?

Thanks,
JK

[oruebel]

@JustinKillebrew this looks like a MatNWB issue. For this I would recommend filing an issue on https://github.com/NeurodataWithoutBorders/matnwb