Unable to decode route: /_/:hyperfiddle.schema!$/

Invalid route In: [:hyperfiddle.route/fiddle] val: _ fails spec: :fiddle/ident at: [:hyperfiddle.route/fiddle :ident] predicate: keyword? In: [:hyperfiddle.route/fiddle] val: _ fails spec: :hyperfiddle.route/fiddle at: [:hyperfiddle.route/fiddle :dbid] predicate: number? In: [:hyperfiddle.route/fiddle] val: _ fails spec: :fiddle/uuid at: [:hyperfiddle.route/fiddle :uuid] predicate: uuid? :cljs.spec.alpha/spec :hyperfiddle/route :cljs.spec.alpha/value {:hyperfiddle.route/fiddle _, :hyperfiddle.route/datomic-args [:hyperfiddle.schema/$]}

{:cljs.spec.alpha/problems
 ({:path [:hyperfiddle.route/fiddle :ident],
   :pred cljs.core/keyword?,
   :val _,
   :via [:hyperfiddle/route :hyperfiddle.route/fiddle :fiddle/ident],
   :in [:hyperfiddle.route/fiddle]}
  {:path [:hyperfiddle.route/fiddle :dbid],
   :pred cljs.core/number?,
   :val _,
   :via [:hyperfiddle/route :hyperfiddle.route/fiddle],
   :in [:hyperfiddle.route/fiddle]}
  {:path [:hyperfiddle.route/fiddle :uuid],
   :pred cljs.core/uuid?,
   :val _,
   :via [:hyperfiddle/route :hyperfiddle.route/fiddle :fiddle/uuid],
   :in [:hyperfiddle.route/fiddle]}),
 :cljs.spec.alpha/spec :hyperfiddle/route,
 :cljs.spec.alpha/value
 {:hyperfiddle.route/fiddle _,
  :hyperfiddle.route/datomic-args [:hyperfiddle.schema/$]}}