Error when running Session()

[PiezaKake]

Hi I am getting the following error

session = Session(directory)
Searching directory: 2024-09-23_13-41-02
Found recording format: Binary
Dot indexing is not supported for variables of this type.

Error in BinaryRecording/loadContinuous (line 63)
stream.metadata.names{j} = self.info.continuous(i).channels(j).channel_name;

Error in BinaryRecording (line 40)
self = self.loadContinuous();

Error in BinaryRecording.detectRecordings (line 240)
recordings{end+1} = BinaryRecording(recordingDirectories{recIdx}, expIdx, recIdx);

Error in RecordNode/detectRecordings (line 95)
self.recordings = BinaryRecording.detectRecordings(self.directory);

Error in RecordNode (line 71)
self.detectRecordings();

Error in Session/detectRecordNodes (line 70)
self.recordNodes{end+1} = RecordNode(paths{i});

Error in Session (line 61)
self.detectRecordNodes();

Any help is much appreciated

[medengineer]

Hi,

Can you please attach the structure.oebin file from your recording to help debug.

Thanks!

[PiezaKake]

Thanks you so much for the prompt reply. In my experiments, I record 3 data streams with a record node. (i)The AP from NEUROPIX-PXI, the (ii) LFP from NEUROPIX-PXI, and (iii) a NI-DAQMX. The NEUROPIX-PXI allows the recording of up to 384 channels from a Neuropixels 1.0 probe, and optionally an extra channel with the sync pulses from the NI PXIe. Only when I opt to record the sync pulses this error occurs. Please find attached the structure file. I had to change the extenstion to .txt, because github did not allow me to upload with the .oebin extension.
structure.txt

[medengineer]

Thanks for reporting this.

A temporary workaround is changing the last occurrence of (j) to {j} in BinaryRecording/loadContinuous (line 63):

stream.metadata.names{j} = self.info.continuous(i).channels{j}.channel_name;

This should allow you to load the data in the case where the extra SYNC channel is included in the recording.

I will confirm exactly what is causing this discrepancy in the lab tomorrow and offer a more robust fix.