Help installation

Ryan Schmidt ryandesign at
Mon Mar 27 17:58:47 UTC 2017

> On Mar 27, 2017, at 06:14, Franck Olivier Ngassam Nyakam <ngassamnyakam at> wrote:
> Hello Sir
> I can not always finish the macport instalation a cause of gmp and I even googled but I find an answer. When I enter the command sudo port install ffmpeg I have this resultContinue? [Y/n]: Y
> --->  Configuring gmp
> Error: Failed to configure gmp, consult /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_gmp/gmp/work/gmp-6.1.2/config.log
> Error: Failed to configure gmp: configure failure: command execution failed
> Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_gmp/gmp/main.log for details.
> Error: Follow to report a bug.
> Error: Processing of port ffmpeg failed
> And the last time you want to show you the main.log file and config.log, how to have them from my terminal ?.

The config.log you sent shows this error:

xcrun: error: unable to exec Xcode native xcrun (Permission denied).

This problem has been discussed before here:

I think this means either you haven't installed Xcode, or you haven't used xcode-select to indicate where Xcode is installed.

So first, try installing Xcode. You can get it from the Mac App Store:

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