equinor/ert

Unclear error message when misconfigured forward model in config

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#10,313 opened on Mar 14, 2025

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enhancementgood first issue

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Description

What happened? (You can include a screenshot if it helps explain)

I tried running DESIGN2Params but it was unclear how to pass arguments to the forward model, so I tried passing them as positional arguments. This does not seem to be supported, but the error message was not helpful. FORWARD_MODEL DESIGN2PARAMS(dm.xlsx,DesignSheet,DefaultValues) should be FORWARD_MODEL DESIGN2PARAMS(<xls_filename>=dm.xlsx, <designsheet>=default, <defaultssheet>=DefaultValues)

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What did you expect to happen?

Better error message

steps to reproduce

Environment where bug has been observed

  • python 3.11
  • python 3.12
  • macosx
  • rhel7
  • rhel8
  • local queue
  • lsf queue
  • slurm queue
  • openPBS queue

Contributor guide

Research direction
Examine the parsing logic for FORWARD MODEL arguments to detect when positional arguments are used instead of keyword arguments, and generate a more descriptive error message.
Tech stack
python
Domain
backendcli
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
1
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Basic understanding of ERT config syntax
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
85