Hi Youchiuan,

I believe you installed to /anaconda3 and then got prompted for an administrator password.  Unfortunately, with the MacOS Package Installer this is the default.  But you should remove /anaconda3 and /Users/willie/.larch (which will probably require  Administrator privilege) and then re-run the installer and explicitly select "Install only for me".   (FWIW, my understanding is that this cannot be the default).  This will install to /Users/willie/xraylarch, and I believe that this will then work.
Also, make sure you get the latest installer -- it should say "0.9.46", not "0.9.46rc1".

On Tue, Sep 17, 2019 at 8:29 AM 朱宥銓 <f07223103@ntu.edu.tw> wrote:
Hi everyone,
I had a problem when I tried to launch XAS software “Larch” on Mac through single-file installers. After I followed the tutorial and  installed it (double click the dmg file), when I typed the command “larch”, the terminal showed the followings:

could not read history from /Users/willie/.larch/history.lar
[Errno 13] Permission denied: '/Users/willie/.larch/init.lar'
[Errno 13] Permission denied: '/Users/willie/.larch/history.lar'
[Errno 13] Permission denied: '/Users/willie/.larch/history_larchgui.lar'
[Errno 13] Permission denied: '/Users/willie/.larch/matplotlib/README'
[Errno 13] Permission denied: '/Users/willie/.larch/dlls'
[Errno 2] No such file or directory: '/Users/willie/.larch/dlls/README'
[Errno 13] Permission denied: '/Users/willie/.larch/modules'
[Errno 2] No such file or directory: '/Users/willie/.larch/modules/README'
[Errno 13] Permission denied: '/Users/willie/.larch/plugins'
[Errno 2] No such file or directory: '/Users/willie/.larch/plugins/README'
Traceback (most recent call last):
  File "//anaconda3/bin/larch", line 11, in <module>
    load_entry_point('xraylarch==0.9.46rc1', 'console_scripts', 'larch')()
  File "//anaconda3/lib/python3.7/site-packages/larch/apps.py", line 230, in run_larch
    cli = shell(quiet=options.quiet, with_wx=with_wx)
  File "//anaconda3/lib/python3.7/site-packages/larch/shell.py", line 56, in __init__
    maxhistory=maxhist)
  File "//anaconda3/lib/python3.7/site-packages/larch/interpreter.py", line 177, in __init__
    for pname in sorted(os.listdir(plugins_dir)):
FileNotFoundError: [Errno 2] No such file or directory: '/Users/willie/.larch/plugins’

Does anyone face this problem as well? How can I fix this problem?

Thank you,

Youchiuan
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