编译Haskell程序时出错

Question

On my WinXP (sp3) machine with the GHC Haskell Platform (2013.2.0.0), attempting to compile code results in the following error unless the file in question is contained within a subdirectory, ie, not root ('C:\\'):

Prelude> :l doubleMe.hs
[1 of 1] Compiling Main             ( doubleMe.hs, interpreted )
*** Exception: CreateDirectory ".": permission denied (Access is denied.)

Does anyone know if this is a bug? If so, it has persisted across multiple versions of GHC and I am beginning to suspect storing haskell code in subdirectories on Windows machines is simply a necessity. Is the error reproducible on *nix machines?

Thanks.

~Caitlin

Answer 1

后代：问题是GHCi试图在它碰巧运行的任何目录中创建临时文件。如果这个目录恰好是一个有权限问题的目录（例如Windows中的根目录），那么就会抛出错误。

Answer 2

I'd recommend checking the permissions for the files you're attempting to create. If you're attempting to put them in a restricted area, you'll need additional permissions to do so.