playground error: read properties of null

[ericprud]

The playground gives this error

TypeError: Cannot read properties of null (reading 'termType')

(4X) when composing a "@container": "@list" with an @id:

      "entries": [
        {
          "@id": "#3backtick_pass",
          "@type": "http://a.example/ValidationTest"
        }

Changing the @id to @id999 gets rid of the error.

[gkellogg]

It's an issue with establishing the Base IRI for expanding "#3backtick_pass". You can set a base IRI in Options (although, it says it has a default). Error message might be a bit more informative, perhaps.

Note that using "@type": "@id" in the term definition doesn't really do anything, as each list member is an object.

[ericprud]

I tried setting the Base but still see the same error.

+1 to more informative error message.