Windows: Loading Haskell-Source-Code into ghci

Question

I am a newbie to Haskell and my problem is probably very trivial, yet I do not know how to solve it.

I created a minimal source code (for faculty, as in the tutorial) with the Editor in Windows 7, then saved it as "test.hs" . Now if I try to load the file into the Haskell interpreter (ghci), then it will give me the following error message:

: can't find file S:\Haskell-Code\test.hs Failed. modules loaded: none.

I am sure that I am in the right directory, I also tried loading test (which gives me another error message telling me that it isn't a module), also renamed the file to just "test". Is there something I am missing?

Thanks in advance.

The file should definitely be called "*.hs". Provided you are in the directory, where the file lives (i.e. you started ghci there), :load test.hs should work. In that case ghci should not complain with a full path even if you get the filename wrong. — Martin Drautzburg
– Martin Drautzburg, Commented May 2, 2015 at 10:04

David · Accepted Answer · 2015-05-02 10:04:50Z

0

Can you start ghci (in the right directory) and then type

:!dir

Does it display the right directory?
Do you see the file test.hs?

answered May 2, 2015 at 10:04

David

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3 Comments

Yinyue Over a year ago

Thanks!Yes, It does find the file, however it is text.hs.txt That's probably the problem. Is there a way to get the ".txt"-ending away (it is not in the filename itself)?

Zeta Over a year ago

@Yinyue: Do you start ghci in cmd or Powershell? In this case you can use move test.hs.txt test.hs. However, you can also simply show file extensions and edit the file in explorer. The setting can be found in the view menu.

David Over a year ago

as a fast hack you can type :!move test.hs.txt test.hs

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