Unable to install Delphes via MG5 v2.6.0 on Sierra 10.12.6

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

Hi,

Did you update xcode recently?
Looks like root is not compatible with the latest version of xcode.
You have to wait that root released a new version fixing that bug. Or you can try to downgrade xcode.

Cheers,

Olivier

> On 21 Sep 2017, at 23:22, Kareem Farrag <email address hidden> wrote:
>
> New question #658486 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/658486
>
> Hi there, I am trying to install Delphes via MG5, but every time I run the command the following message appears:
>
> compile Delphes. This might take a while.
>>> Generating tmp/classes/ClassesDict.cc
>>> Compiling tmp/classes/ClassesDict.cc
> In file included from tmp/classes/ClassesDict.cc:30:
> In file included from ./classes/DelphesModule.h:30:
> In file included from external/ExRootAnalysis/ExRootTask.h:12:
> In file included from /usr/local/Cellar/root/6.10.04/include/root/TTask.h:24:
> In file included from /usr/local/Cellar/root/6.10.04/include/root/TNamed.h:26:
> In file included from /usr/local/Cellar/root/6.10.04/include/root/TString.h:28:
> /usr/local/Cellar/root/6.10.04/include/root/RStringView.h:35:12: error: unknown
> type name 'basic_string_view'
> typedef basic_string_view<char> string_view;
> ^
> /usr/local/Cellar/root/6.10.04/include/root/RStringView.h:35:29: error:
> expected unqualified-id
> typedef basic_string_view<char> string_view;
> ^
> /usr/local/Cellar/root/6.10.04/include/root/RStringView.h:36:12: error: unknown
> type name 'basic_string_view'
> typedef basic_string_view<char16_t> u16string_view;
> ^
> /usr/local/Cellar/root/6.10.04/include/root/RStringView.h:36:29: error:
> expected unqualified-id
> typedef basic_string_view<char16_t> u16string_view;
> ^
> /usr/local/Cellar/root/6.10.04/include/root/RStringView.h:37:12: error: unknown
> type name 'basic_string_view'
> typedef basic_string_view<char32_t> u32string_view;
> ^
> /usr/local/Cellar/root/6.10.04/include/root/RStringView.h:37:29: error:
> expected unqualified-id
> typedef basic_string_view<char32_t> u32string_view;
> ^
> /usr/local/Cellar/root/6.10.04/include/root/RStringView.h:38:12: error: unknown
> type name 'basic_string_view'
> typedef basic_string_view<wchar_t> wstring_view;
> ^
> /usr/local/Cellar/root/6.10.04/include/root/RStringView.h:38:29: error:
> expected unqualified-id
> typedef basic_string_view<wchar_t> wstring_view;
> ^
> 8 errors generated.
> make: *** [tmp/classes/ClassesDict.o] Error 1
> Error detected during the compilation. Please check the compilation error and run make manually.
>
>
> I currently have root6 and am using homebrew to install, but to no success. Any help is greatly appreciated!
>
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