datetime cannot be converted to type isodatetime

[jccava]

Hello all, I updated my MatNWB (2.6.0) and am now encountering an error while trying to create an NWB file. Simple code looks like:

dt = datetime('now', 'TimeZone', 'local');
dt.Format = 'yyyy-MM-DD''T''HH:mm:ss.SSSZ';
dt

nwbOutputFile = NwbFile();
nwbOutputFile.identifier = 'test';
nwbOutputFile.session_description = 'test';
nwbOutputFile.session_start_time = dt;

and what Matlab tells me is:

dt = 

  datetime

   2023-03-79T12:50:43.727-0400

Error using assert
Value of type `datetime` cannot be converted to type `isodatetime`.

Error in types.util.correctType (line 60)
        assert(isa(val, type), ...

Error in types.util.checkDtype (line 96)
correctedValue = types.util.correctType(val, type);

Error in types.core.NWBFile/validate_session_start_time (line 744)
        val = types.util.checkDtype('session_start_time', 'isodatetime', val);

Error in types.core.NWBFile/set.session_start_time (line 356)
        obj.session_start_time = obj.validate_session_start_time(val);

Error in processKilosortForNWB (line 34)
nwbOutputFile.session_start_time = dt;

It also breaks even with a simple

nwbOutputFile.session_start_time = datetime(2018, 4, 25, 2, 30, 3);

Any ideas what I'm doing wrong? Thanks in advance. --James

[bendichter]

Can you try initiating the NWB File the way it is done in the tutorials? e.g. here

[lawrence-mbf]

Yes, I would advise not using the Inno installer as well to ensure that everything installed correctly. It is also important to check that the MATLAB path is pointing to the correct version of MatNWB if you're using multiple versions (MatNWB will default to the directory on PATH to generate their class files).

[lawrence-mbf]

Oh, sorry, please wipe and install the newest release of MatNWB. It should support all schema versions older than what it states.

[jccava]

Thank you. Should I generate the latest core, or 2.4.0 schema?

[lawrence-mbf]

Neither should have this issue anyway. For your needs, I would suggest using the most updated schema.

[jccava]

Thousands of thanks. Errors gone. --James