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I used to be able to compile to C without problems, but from one day to the next, when I try to compile something, e.g.

Compile[{{x,_Real}},x^2,CompilationTarget->"C"]

I get the message

Compile::nogen: A library could not be generated from the compiled function.

I searched for the error message but can't find out what's going on.

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  • $\begingroup$ Do you always get the Compile::nogen error? Or only some of the time? $\endgroup$ – dr.blochwave Sep 23 '14 at 15:39
  • $\begingroup$ Since a few days always, before I never got it. $\endgroup$ – Jansen Sep 23 '14 at 15:40
  • $\begingroup$ Works for me with 10.0.1 on Mac OSX. Did you recently update? What's your platform? $\endgroup$ – Mark McClure Sep 23 '14 at 15:41
  • $\begingroup$ I have mathematica 10.0 and also on Mac OSX. I didn't manually update anything, don't know about auto updates though. $\endgroup$ – Jansen Sep 23 '14 at 15:44
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    $\begingroup$ If you're a mac user, there was a patch for XCODE and 10.9.5 last week I think which meant I had to run the XCODE installer again on SystemModeler to bring that back to life with compiling.... wonder if it's the same issue? Try running XCODE, then rerunning in Mathematica maybe? $\endgroup$ – ASBO Allstar Sep 23 '14 at 16:49
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Following the 10.9.5 patch to MacOS and the corresponding update to XCODE it may be necessary to run XCODE again to reinstall it and then this should renable C compilation in Mathematica (v10) and SystemModeler (v3).

Certainly was the case for me.

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