Thanks Gregory, Indeed xcode was not installed - however I wonder, why is it a dependency? It seems quite a heavyweight thing to require for installing Haskell, and this requirement may very well be a good reason to *not* install it... Could you please point me to the ticket you opened? I was not able to google it. 2011/2/24 Gregory Collins :

Hello,

Usually this is because XCode is not installed. I believe the README states that this is a dependency for the install process. I opened a ticket with GHC HQ a while ago re: making this scenario friendlier for users.

G.

On Thu, Feb 24, 2011 at 3:41 PM, Eugene Kirpichov wrote:

...

Hello,

Below is an experience report from Artem (cc'd) on a failed installation of Haskell platform on a Mac.

OS: OS X 10.6.6 CPU: Intel Core i5 Platform downloaded from: http://lambda.haskell.org/hp-tmp/2010.2.0.0/haskell-platform-2010.2.0.0.i386...

Sequence of actions: Downloaded the file, mounted the image, ran "Install new GHC", pressed OK until the following screen appeared http://i.imgur.com/GGdbg.png - there the Install button was disabled; pressing "change install location" did not help since only 1 option was available there, and it was already selected. After that, Artem tried to uninstall GHC, but unsuccessfully, since OS told that it was not installed. Then he tried to install the platform, and eventually got the following error around "moving files into place": http://i.imgur.com/YHb22.png

I've also heard somewhat similar problem reports on installing haskell-platform on OS X from other people (I myself don't have it) - like being unable to install it without first installing XCode, etc.

Can anyone help resolve this issue? I'm sure this is not expected behavior. What further information would help find the cause?

-- Eugene Kirpichov Senior Software Engineer, Mirantis Inc. http://www.mirantis.com/

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-- Gregory Collins

-- Eugene Kirpichov Senior Software Engineer, Mirantis Inc. http://www.mirantis.com/

This should be fixed in the next (2011) Haskell Platform. You should receive "Please install Xcode developer tools first." - Mark