500 Internal Server Error when uploading TCJA_Reconciliation.json to TaxBrain

[MaxGhenis]

I uploaded TCJA_Reconciliation.json to https://www.ospc.org/taxbrain/file/, which takes me to https://www.ospc.org/taxbrain/file/?start_year=2017 where it says

500 Internal Server Error!

This error arises both when providing and not providing a behavior file, and when choosing Show me the results! and Quick calculation!.

I don't get the error when uploading the older TCJA_Senate.json, though the difference table is all zeros (https://www.ospc.org/taxbrain/26994/).

[MaxGhenis]

I see here that TCJA_Reconciliation requires Tax-Calculator version 0.14.1, while TaxBrain is on version 0.14.0 per my just-produced Senate result.

Is there an issue for updating TaxBrain to 0.14.1 I can track?

If possible, a more informative error message would be nice here, e.g. saying the reform includes parameters not available in the current version.

[martinholmer]

@MaxGhenis, Thanks for your reports on problems using TaxBrain to analyze the conference committee's TCJA bill. I think TaxBrain will soon be using Tax-Calculator release 0.14.1, which should eliminate the problems you're having. You can follow the progress of TaxBrain at this GitHub repository.

@MaxGhenis also said:

If possible, a more informative error message would be nice here, e.g. saying the reform includes parameters not available in the current version.

Yes, that would be better than the uninformative 500 Internal Server Error!.
I'll suggest that to the TaxBrain developers. @hdoupe and/or @GoFroggyRun, can you open an enhancement issue on this topic?

[martinholmer]

I'm going to close issue #1771 now that it is on the radar scope of the TaxBrain developers.

[MaxGhenis]

Ah, I didn't realize PolicyBrain included TaxBrain. Would it be worth mentioning that front-end issues should be checked/reported there in https://github.com/open-source-economics/Tax-Calculator/blob/master/docs/contributing.md ?

[hdoupe]

@MaxGhenis said

Ah, I didn't realize PolicyBrain included TaxBrain.

Yes, PolicyBrain includes TaxBrain. The PolicyBrain codebase is a little complicated right now. So, it's understandable that you didn't find TaxBrain in that mess. You can follow progress on this issue in ospc-org/ospc.org#779.