Error "object 'dep_dcat_identity_value_sizeMax' not found" in v1.4.0

[PierGianLuca]

Dear wonderful Nimble devs,

I updated to v1.4.0 from CRAN, and tested whether my proto-package "inferno" works with the new version. But I got this error:

> object 'dep_dcat_identity_value_sizeMax' not found

which seems to occur directly after this Note from Nimble:

> [Note] Reordering posterior_predictive samplers to execute last

So I suspect that's related to my calling `confnimble$setSamplerExecutionOrder`, here:

https://github.com/pglpm/inferno/blob/f661cdde167579de1e586afada16244c8fce43db/R/learn.R#L2679

I checked the Nimble NEWS, but can't find any relevant items, especially in "DEVELOPER LEVEL CHANGES".

While preparing a minimal working example, I thought I could start mentioning this, in case you already have a hint of what could be the cause.

Thank you for version 1.4.0! :)

Kind regards,
Luca

[Daniel Turek]

Luca, thank you very much for this error report.  There were some updates made to the MCMC system of conjugacy processing in version 1.4.0, which are probably what's causing the problem.  I would not have suspected his has anything to do with the setSamplerExecutionOrder method, but clearly something is happening that we didn't foresee.  If you're please able to put together a reproducible example of the problem (something that worked fine for earlier versions of nimble, and now causes an error when using version 1.4.0), then we'll take a look and see what's happening.

Thanks,

Daniel

[PierGianLuca]

Dear Daniel,

Enclosed is a minimal script that works with Nimble 1.3.0 (with warnings about log-probabilities, but they're expected) but doesn't work with 1.4.0.

I suspect the problem may come from the indexing with `Nprob` or `Ni` or `Nf`.

Please note that the implementation you see in this minimal example may not make much sense, but it does make sense in the full package; see comments in line 37.

Thank you for looking into this!
Luca