emmentaler error on NativeCall

Cannot call 'postcircumfix:<{ }>'; none of these signatures match:
:(: Mu *%_)
:(: :kv(:$kv)!, Mu *%_)
:(: :p(:$p)!, Mu *%_)
:(: :k(:$k)!, Mu *%_)
:(: :v(:$v)!, Mu *%_)
:(: :BIND(:$BIND)!, Mu *%_)
:(\SELF: $key, Mu *%_)
:(\SELF: $key, Mu \$BIND, Mu *%_)
:(\SELF: $key, :delete(:$delete)!, :exists(:$exists) = { ... }, :kv(:$kv) = { ... }, :p(:$p) = { ... }, :k(:$k) = { ... }, :v(:$v) = { ... }, Mu *%_)
:(\SELF: $key, :exists(:$exists)!, :kv(:$kv) = { ... }, :p(:$p) = { ... }, :k(:$k) = { ... }, Mu *%_)
:(\SELF: $key, :kv(:$kv)!, Mu *%_)
:(\SELF: $key, :p(:$p)!, Mu *%_)
:(\SELF: $key, :k(:$k)!, Mu *%_)
:(\SELF: Positional \key, Mu *%_)
:(: Positional $key, :BIND(:$BIND)!, Mu *%_)
:(\SELF: Positional \key, :delete(:$delete)!, :exists(:$exists) = { ... }, :kv(:$kv) = { ... }, :p(:$p) = { ... }, :k(:$k) = { ... }, :v(:$v) = { ... }, Mu *%_)
:(\SELF: Positional \key, :exists(:$exists)!, :kv(:$kv) = { ... }, :p(:$p) = { ... }, Mu *%_)
:(\SELF: Positional \key, :kv(:$kv)!, Mu *%_)
:(\SELF: Positional \key, :p(:$p)!, Mu *%_)
:(\SELF: Positional \key, :k(:$k)!, Mu *%_)
:(\SELF: Positional \key, :v(:$v)!, Mu *%_)
:(\SELF: Whatever , Mu *%_)
:(: Whatever , :BIND(:$BIND)!, Mu *%_)
:(\SELF: Whatever , :delete(:$delete)!, :exists(:$exists) = { ... }, :kv(:$kv) = { ... }, :p(:$p) = { ... }, :k(:$k) = { ... }, :v(:$v) = { ... }, Mu *%_)
:(\SELF: Whatever , :exists(:$exists)!, :kv(:$kv) = { ... }, :p(:$p) = { ... }, :k(:$k) = { ... }, Mu *%_)
:(\SELF: Whatever , :kv(:$kv)!, Mu *%_)
:(\SELF: Whatever , :p(:$p)!, Mu *%_)
:(\SELF: Whatever , :k(:$k)!, Mu *%_)
:(\SELF: Whatever , :v(:$v)!, Mu *%_)
  in method postcircumfix:<{ }> at src/gen/CORE.setting:1848
  in method add-project at lib/Panda/Ecosystem.pm:69
  in submethod BUILD at lib/Panda/Ecosystem.pm:43
  in method BUILDALL at src/gen/CORE.setting:854
  in method bless at src/gen/CORE.setting:837
  in method new at src/gen/CORE.setting:822
  in method new at src/gen/CORE.setting:820
  in sub MAIN at /usr/bin/emmentaler-smoker:32
  in block  at /usr/bin/emmentaler-smoker:1