[tex-live] Error: Unknown format directive

Arno Trautmann Arno.Trautmann at gmx.de
Fri Jan 29 20:44:13 CET 2016

Hi all,

I just wanted to install TeX Live 2015 to a windows 7 machine. Package 
downloading succeeded, mktexlsr ran fine, but then I run into the 
following error and the intallation is not finished:

writing fmtutil.cnf to C:/texlive/2015/texmf-dist/web2c/fmtutil.cnf
Tk::Error: Unknown format directive 
fmttriggers=cm,hyphen-base,knuth-lib,plain,package aleph, execute 
AddFormat name=aleph engine=aleph options=*aleph.ini
       fmttriggers=cm,hyphen-base,knuth-lib,plain at 
line 981.
  TeXLive::TLPOBJ::fmtutil_cnf_lines at 
line 981
  TeXLive::TLPDB::fmtutil_cnf_lines at 
line 2152
  TeXLive::TLUtils::create_fmtutil at 
line 2821
  main::do_postinst_stuff at 
C:\Users\matterwave\Desktop\install-tl-20150819\install-tl line 924
  main::do_installation at 
C:\Users\matterwave\Desktop\install-tl-20150819\install-tl line 790
  main::wizard_installation_window at 
line 709
  Tk callback for .button2
  Tk::__ANON__ at 
line 251
  Tk::Button::butUp at 
line 175
  (command bound to event)

Online search for the given error just returns the TLUtils.pm script.
The same problem happened to a colleague of mine, so it seems not to be 
a problem of my machine. We are behind a proxy, which should be 
configured fine since the package loading worked. If I can give any 
other information so you could point me at a solution, I'll happily 
provide them.

Any help is highly appreciated,


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