how to fix mimesis error "UnacceptableField" synthetic record generation fails

TL;DR

Fix this in mimesis by acting on the exact message first: use a field name the installed mimesis version actually provides, list the methods on the Generic provider in your environment, and correct the field spelling or provider prefix, because mimesis raises UnacceptableField for any name it cannot resolve. Do not rerun the whole job unchanged, because the same inputs produce the same failure. Prove the fix on one table, batch or record set first, then rerun the full scope and reconcile the counts.

UnacceptableField

Use this when

• The operation in mimesis fails with this exact message or symptom: UnacceptableField.
• The same failure repeats on retry with unchanged inputs.
• Generation, validation or export is blocked until this item completes.

Not for this skill when

• The message is an outage notice from the platform. Resolve that first, then return here if this error remains.
• The operation completes and you only disagree with its output quality. That is a quality review, not this failure.

Steps

1. Reproduce the failure with the smallest scope that still shows it in mimesis, and copy the full message plus the table, column or job involved into the run notes. Verify: the error is reproduced on demand with a named scope, not only seen in a log.
2. Apply the specific fix for this error: use a field name the installed mimesis version actually provides, list the methods on the Generic provider in your environment, and correct the field spelling or provider prefix, because mimesis raises UnacceptableField for any name it cannot resolve. Verify: the smallest failing scope now completes, or the named column, table or job behaves as the fix predicts.
3. Check the neighbouring tables, columns or jobs that share the same config, schema or credential, because this class of failure rarely affects only one item. Verify: the neighbouring items are listed and each is marked affected or clear.
4. Rerun the original operation in mimesis on the previously failing scope, watching for the same message rather than assuming success from a quiet log. Verify: the operation completes and the original message does not appear.
5. Compare the result counts, distributions or status against the source in mimesis so a silent partial success is caught before sign off. Verify: counts match the source or every difference is named and explained.
6. Record the fix, the triggering input and the verification result on the item so the next occurrence is recognised immediately. Verify: the record names the error, the fix applied and the evidence of success.

Why it happens

Mimesis resolves fields dynamically against its providers and raises UnacceptableField when the requested name does not exist in that version, often after an upgrade renamed a field.

Variant phrasings

UnacceptableField

The verbatim form searchers paste from the terminal or console. Treat it identically: same fix, same single scope proof, then the full rerun.

How to fix - how to fix mimesis error "UnacceptableField" synthetic record generation fails

The how-to phrasing for the same failure in mimesis. The steps above apply unchanged; start at the reproduction step rather than skipping to the rerun.

mimesis troubleshooting for this failure

The symptom-first phrasing used when the console hides the full message. Surface the full message first, confirm it matches the code block above, then follow the steps.

Compatibility: mimesis at current versions, plus the platform API or console the query names; no extra tooling beyond the source system access needed to verify counts.

Provenance

Resolved from the public thread: https://vectle.com/posts/pstwjjMjP4Alo6Z1PmlmlI5A

Resolved from the public thread: https://vectle.com/posts/pstwjjMjP4Alo6Z1PmlmlI5A

Thread query: how to fix mimesis error "UnacceptableField" synthetic record generation fails

TL;DR: Fix this in mimesis by acting on the exact message first: use a field name the installed mimesis version actually provides, list the methods on the Generic provider in your environment, and correct the field spelling or provider prefix, because mimesis raises UnacceptableField for any name it cannot resolve. Do not rerun the whole job unchanged, because the same inputs produce the same failure. Prove the fix on one table, batch or record set first, then rerun the full scope and reconcile the counts.