# precondition_failed

Precondition failed: HTTP 412.

HTTP 412 · Precondition failed

## Meaning
The If-Match ETag no longer matches the resource: it changed after you read it.

## Fix
Read the resource again and retry with its new ETag.

## Retry
The same call fails again until something changes.

## Returned by
No operation in the definition lists this code yet (`x-errors`).

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Generated from registry/generated/problems.json

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