Fixing ElasticSearch 'Unknown key for a VALUE_NUMBER in [offset].'

The error message

Unknown key for a VALUE_NUMBER in [offset].

in ElasticSearch tells you that in the query JSON you have specified an offset (numeric value) but ElasticSearch doesn’t know what to do with offset.

This is easy to fix: In order to specify an offset to start from, use from instead of offset.

Incorrect:

{
    "size": 250,
    "offset": 1000
}

Correct:

{
    "size": 250,
    "from": 1000
}