修復「曖昧類型變量」我有一個斯波克應用程序,其中我有這樣的: post "/test" $ do
a <- jsonBody'
text "test"
它拋出一個異常: • Ambiguous type variable ‘a0’ arising from a use of ‘jsonBody'’
prevents the constraint ‘(Aeso
有幾個標識符WAI含有 「LBS」: Network.Wai.responseLBS:: Status -> ResponseHeaders -> ByteString -> Response -- | Store uploaded files in memory lbsBackEnd:: Monad m => ignored1 -> ignored2 -> m S.ByteString -> m