method.input_concept_mismatch

A pipe's input concept does not fit its use


Type	`https://mthds.ai/errors/method.input_concept_mismatch`
Family	`method`: The method as written, the validation vocabulary included.
Domain	`method`: the method's author acts, by changing the method
Retry	`no`: repeating the operation fails the same way
HTTP status	`422`
Raised as	a problem document, sent as the body of an HTTP response or kept in a run's record

What it means

An input is declared as a concept that its use does not accept, such as a step that hands it to a pipe expecting another concept.

What to do

Declare the input as one of params.expected, or as a concept that refines one, or change what reads it.

Next steps

A problem carries the step aimed at whoever reads it: the first when its reader is the domain's actor, the method's author, and the second for any other reader.

Reader	Kind	Detail
The domain's actor	`change_method`	Declare the input '`{input}`' of pipe '`{pipe}`' with a concept its use accepts, then validate the method again.
Any other reader	`contact_owner`	Ask the method's owner to declare the input '`{input}`' of pipe '`{pipe}`' with a concept its use accepts.

Detail

The problem's detail is written from this template, filled with the occurrence's parameters:

Pipe '{pipe}' declares the input '{input}' as '{declared}', which its use does not accept. It accepts: {expected}.

Parameters

Every parameter is present on every occurrence of the code.

Name	Type	Description
`pipe`	`identifier`	The pipe at fault.
`input`	`identifier`	The input.
`declared`	`identifier`	The concept the input is declared as.
`expected`	list of `identifier`	The concepts its use accepts.