另一個在Ubuntu上安裝Yesod難度

Question

環顧StackOverflow我看到一堆類似的問題，但每個都有關於特定的庫。

這裏是我的：

當試圖運行：

cabal install yesod 

我得到

Resolving dependencies... 
Configuring yaml-0.8.7... 
Building yaml-0.8.7... 
Preprocessing library yaml-0.8.7... 

Data/Yaml/Parser.hs:15:8: 
    Could not find module `Data.Conduit.Lift' 
    Perhaps you meant 
     Data.Conduit.List (from conduit-1.0.8) 
     Data.Conduit.List (needs flag -package conduit-1.0.5.1) 
     Data.Conduit.Text (needs flag -package conduit-1.0.5.1) 
    Use -v to see a list of the files searched for. 
Failed to install yaml-0.8.7 
Configuring yesod-core-1.2.10... 
Building yesod-core-1.2.10... 
Preprocessing library yesod-core-1.2.10... 

Yesod/Core/Json.hs:47:8: 
    Could not find module `Data.Conduit.Lift' 
    Perhaps you meant 
     Data.Conduit.List (from conduit-1.0.8) 
     Data.Conduit.List (needs flag -package conduit-1.0.5.1) 
     Data.Conduit.Text (needs flag -package conduit-1.0.5.1) 
    Use -v to see a list of the files searched for. 
Failed to install yesod-core-1.2.10 
cabal: Error: some packages failed to install: 
yaml-0.8.7 failed during the building phase. The exception was: 
ExitFailure 1 
yesod-1.2.5.2 depends on yesod-core-1.2.10 which failed to install. 
yesod-auth-1.3.0.2 depends on yesod-core-1.2.10 which failed to install. 
yesod-core-1.2.10 failed during the building phase. The exception was: 
ExitFailure 1 
yesod-form-1.3.8.1 depends on yesod-core-1.2.10 which failed to install. 
yesod-persistent-1.2.2.2 depends on yesod-core-1.2.10 which failed to install. 

東西在Hackage破裂或者這只是我的機器上？

Answer 1

您正試圖安裝yaml的版本，該版本在導管上沒有嚴格的下限。 Hackage已經有了一個更新的版本。它看起來像你還沒有運行cabal update。