我試圖在我的mac中安裝cabal-dev。完成後,我嘗試運行./bin/build。得到這個錯誤信息。在haskell中安裝依賴關係
cabal: cannot configure cabal-dev-0.9.1. It requires MonadRandom ==0.1.*, tar
==0.3.*, test-framework >=0.3 && <0.6 and test-framework-hunit >=0.2
There is no available version of MonadRandom that satisfies ==0.1.*
There is no available version of tar that satisfies ==0.3.*
There is no available version of test-framework that satisfies >=0.3 && <0.6
There is no available version of test-framework-hunit that satisfies >=0.2
這是怎麼回事?我如何在Haskell中安裝依賴文件? 我從Haskell platform下載並安裝。