schema.edn is not valid with recent Datomic versions

[mtnygard]

Expected Result

Transacting schema.edn should prepare a database for models, agents, and sims.

Actual Result

Datomic rejects schema.edn due to the :http/method attribute. It is marked as value type :db.type/keyword and also marked as :db/isComponent true.

Older versions of Datomic would accept this even though there's no meaning to making a value attribute a component.

Newer versions of Datomic will reject this with this exception:

IllegalArgumentExceptionInfo :db.error/invalid-install-attribute Error: {:db/error :db.error/components-must-be-refs, :entity {:db/id 91, :db/ident :http/method, :db/valueType 21, :db/cardinality 35, :db/isComponent true, :db/doc "The method of the HTTP request."}}  datomic.error/deserialize-exception (error.clj:124)

Solution

:http/method should not be a component.