Dear all, I have a Mac and today I updated the OS to the new one, called Catalina. The problem is that now root is not working anymore. If I do on the shell root name_prog.cpp where name_prog is also the name of the main function of it, at the beginning it gave me lots of errors and now it doesn’…

this zsh: command not found: root

I checked and I have still installed home-brew and Cmake

[image] Svante: zsh: command not found: root That means the $PATH variable does not contain the directory where the root binary is. what do you get when you do: echo $PATH and: echo $ROOTSYS

when I do echo $PATH I get /usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Library/Apple/usr/bin:/Library/Apple/bin:/Library/TeX/texbin:/opt/X11/bin and when I do echo $ROOTSYS I get a empty line

$ROOTSYS should point where ROOT is installed on your system. And $PATH should contain the path corresponding to $ROOTSYS/bin . This is normally set when you do: cd where_root_is_installed . bin/thisroot.sh

this means that ROOT is no more installed on my laptop? I try to follow the path above but I can’t arrive to the directory. What can I do to run correctly root again?

[image] Svante: I try to follow the path above but I can’t arrive to the directory. Which path ? you do not know where root is installed on your machine ? With the search icon top right of your Mac top bar, search for “root.exe” then “show all in finder” . Then point on root.exe in that fin…

Ok, I went where my root is installed and did . bin/thisroot but when I try again to open root it doesn’t work. Maybe there is something that I don’t understand.

if I type root on this folder I get: #include <string> ^~~~~~~~ ------------------------------------------------------------ | Welcome to ROOT 6.12/06 http://root.cern.ch | | (c) 1995-2017, The ROOT Team | | Built for macosx64 …

I do not know the exact state of your machine. May be try to re-install root ? It might be there is some incompatibilities with the root binary you have and the new MacOsX. I do not see this problem on my Catalina machine because I re-install root from sources several times per day. Also have you up…

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Problem running root after update to Mac Catalina

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