Error - Time coordinates must be evenly spaced on Geo X Month level data

[annie-gulati]

For one of the clients, we completed modeling at geo level a couple of months ago using meridian library. Now, we are trying to re-run the same code on the same data with no changes from our side, but we are encountering the error "Time coordinates must be evenly spaced". Our data was at geo X month level. Kindly guide us with the appropriate remedial steps.

[santoso-wijaya]

The check that time coordinates in the input data are regularly spaced was added in commit 30b1030 for 0.7.0 release.

If the model was able to train on that input data before then, it might explain why this check is now preventing the model to load.

Can you try pinning Meridian to "meridian < 0.7.0" and see if that helps at least with recreating the same model training environment?

Otherwise, I would look into the time coordinates in the input data and make sure that they are evenly spaced with no missing intervals.